MacRumors

Apple has published a very interesting patent application in which they explore how to provide a Karaoke experience on the iPhone. Not only would users be able to sing along with their favorite songs, but Apple wants to give real-time feedback to singers letting them know how they are doing.

The systems and methods for providing users with real-time feedback while they are singing on key/pitch and providing real-time feedback to the user while the karaoke song is being sung. The feedback will be positive feedback if user is on key/pitch and it will be negative feedback if user is off key/pitch.

The patent application addresses "one of the biggest obstacles faced by amateur sings: singing on key/pitch". Apple suggests that this system could actually improve the quality of people's singing. One novel way to accomplish this would be to measure the pitch of the singer's voice and if it were to be too low, the device could exaggerate the low pitch of the user's own voice to encourage them to sing higher.

Apple clearly depicts pictures of the iPhone's iPod application with an additional menu option for "Karaoke". The interface for the Karaoke section is also shown above. We don't know if Apple will pursue this option in a future version of the iPhone software, but it's a fun and interesting proposition.

SemiAccurate claims that Apple will be dropping NVIDIA-based designs in their next iMacs and laptops for at least the next few years. They claim the reason is due to the recent NVIDIA manufacturing defects which affected a number of MacBook Pros.

The shift back to Intel-based chipsets was not entirely unexpected, however, as Intel and NVIDIA have been under a licensing battle over whether or not NVIDIA can even produce Nehalem-based chipsets in the future. Apple currently uses the Nehalem processors for their Mac Pro line, and is expected to adopt the mobile Nehalem processors for its mobile line later this year.

The shift from Intel to NVIDIA chipsets, however, was responsible for notable gains in the low-end graphics processing power in the new MacBooks and iMacs which will also be leveraged in Apple's upcoming Snow Leopard operating system.

Apple yesterday seeded iPhone OS 3.1 and iPhone SDK 3.1 betas to developers for testing, and users have been digging through the new releases to document new features. Among the changes found so far by readers in our forums, at Redmond Pie, and at MobileCrunch:

- Trimming video clips on the iPhone 3GS now offers the ability to save the edited version as a copy rather than simply overwriting the original file.
- Voice Control over Bluetooth is now available, allowing users to Initiate calls and control music playback via Bluetooth headsets.
- MMS is now enabled by default, but still not supported by AT&T.
- iPhone vibrates when rearranging Home screen icons.
- A "Fraud Protection" toggle is now available in Safari settings.
- iPhone startup and shutdown and app launching times have improved.
- New APIs allow developers of third-party application to access and edit videos.
- OpenGL and Quartz have seen improvements.

Even with the recent release of iPhone 3.0, Apple is hard at work at the next update: iPhone 3.1. Apple seeded registered developers with a beta version of the firmware and SDK today. Few details were provided as to the improvements to be found in the new firmware. The latest build number is 7C97D.

Since the release of the OS X Snow Leopard Build 10A394 developer seed late last week, users have been digging through the new version looking for and documenting changes and additions.

The introduction of QuickTime X in Snow Leopard brings a streamlined interface lacking some of the functionality found in QuickTime 7. It has been reported that earlier Snow Leopard builds would prompt the user to install QuickTime 7 and automatically do so upon command when attempting to open a file supported only by QuickTime 7. The QuickTime 7 functionality, however, was reportedly incomplete in earlier builds. Build 10A394 now permits full installation of QuickTime 7 in this manner and offers the full suite of QuickTime 7 Pro features that currently require a separate paid license on Leopard and Tiger.

Mozilla today released Firefox 3.5, a significant upgrade to the world's second-most popular Internet browser. Webmonkey summarizes some of the more important advances in the latest version, including speed enhancements, support for HTML 5, geolocation services, search improvements, and the addition of a private browsing mode.

Originally envisioned as a quick follow-up to 2008's release of Firefox 3.0, Mozilla ended up packing in quite a few extra features into its flagship browser and spent months making sure that Firefox 3.5 was the fastest, most powerful Firefox yet.

Firefox 3.5 brings with it entirely new and much faster rendering engines for both static web pages and the JavaScript code that powers today's complex web-based applications. There are new privacy features, new capabilities for playing video and audio files and improved search tools. There are also a handful of other new features that should prove useful for both Firefox devotees and newcomers alike.

Firefox 3.5 is available for OS X (10.4 or later), Windows, and Linux and is available in nearly 75 languages.

The Wall Street Journal reports that Dell has been developing a Mobile Internet Device (MID) based on Google's Android operating system. The device is reportedly slightly larger than Apple's iPod touch, with which Dell's offering would presumably compete in many respects should it eventually be released.

Another person who was briefed on the company's plans said Dell may begin selling the device later this year, though this person said the plan could be delayed or scrapped entirely.

The development effort is one of the first experiments by a big-name PC maker in a nascent category of products known as mobile Internet devices, or MIDs,which are designed to fill a perceived gap between mobile phones and laptop computers.

Dell is expected to use ARM processors for the new device, the same platform that powers the iPhone and iPod touch. Back in 2003, Dell introduced its "Dell DJ" music players to compete with the iPod, but the line was discontinued by the end of 2006.

Bloomberg has received confirmation from Apple that Steve Jobs has returned to work at Apple following his liver transplant, currently working part-time at the company's headquarters in Cupertino and part-time from home. Jobs reportedly returned to work last Monday, but today's report is the first confirmation directly from Apple.

Steve Jobs is back at work at Apple Inc., returning to his job as chief executive officer as planned after taking medical leave in January.

"Steve is back to work," Steve Dowling, an Apple spokesman, said today. Jobs is at Apple a few days a week and working at home the remaining days, he said. "We are very glad to have him back," Dowling said.

Jobs announced in mid-January that he would be taking a medical leave of absence until the end of June, and today's report confirms that he has met his target.

Late last week, we reported that Apple had posted an online availability database showing iPhone 3GS stock levels at each of its over 200 U.S. retail stores. At the time, the database showed solid availability of the new iPhone, with nearly 90% of stores showing availability of all four iPhone 3GS models and only five stores being completely sold out.

Apple's retail store stock levels declined over the course of the weekend, and the availability database is now showing significant iPhone 3GS shortages. According to the database, only about 40-45% of Apple's retail stores currently maintain stock of all four models, while nearly 15% of stores are completely sold out. Three states are currently listed as being entirely out of stock of all four models: Alabama (two stores), Oregon (three stores), and Utah (one store).

Reuters reports that ten top mobile phone manufacturers, including Apple, have agreed to adopt the Micro-USB connector standard for smartphone chargers in the European Union. The shift, planned to begin next year, will allow smartphones from the companies, which control 90% of the market, to use the same charging cables. Apple currently uses a proprietary dock connector compatible with both the iPhone and iPod touch.

The chargers will be usable only for data-enabled phones, which have more capability than just standard calls and SMS texts. Data-enabled phones are expected to account for almost half of all new mobile handset purchases in 2010.

The Commission hopes that as people discard their old handsets, within three to four years all data-enabled phones in Europe will be using standardized chargers.

The plan also calls for new phones to be sold with Micro-USB chargers for a period of time before ultimately selling phones and chargers separately in order to allow customers who already own chargers to continue using their existing ones. While the agreement extends only to European phones, it is expected that the standard will make its way into phones around the world as companies attempt to keep their design and manufacturing costs streamlined.