Google Glass will soon gain stronger interoperability with iPhones, allowing iPhone-owning Glass wearers to access text messages and navigation on the device. Currently, only Android phone users can access navigation and texts on Glass via a special companion app.
Google Glass pulls data from the iPhone's cellular connection via Bluetooth tethering, but until now a number of Glass functions were limited.
While Glass will happily work with any iPhone over Bluetooth or use any Wi-Fi connection to get online, iPhone users are currently unable to get turn-by-turn directions through Glass – one of its killer features. Those direction are pretty useful while you are navigating a new city and they do show off the power of location-based apps on Glass, but the software will currently balk if you ask it to give you directions while it’s connected to an iPhone.
The $1,500 Google Glass is currently limited to a select few users but is expected to ship next year at a significantly reduced price.