Preview at WWDC likely in June, followed by September launch.
App Store Experiencing Widespread Search Issues [Updated]
The search issues appear to be widespread, affecting iPhone, iPad, and iPod touch customers throughout the U.S., Canada, Europe, Hong Kong, and elsewhere since early Thursday morning. Apple has yet to update its System Status page with any reported issues as of 6:00 a.m. Pacific, but it has historically been slow in reflecting outages.
Update: The search issues also appear to extend to iTunes and the Mac App Store.
Update 2: Apple is aware that users have been "experiencing a problem with the App Store" since about 2:00 a.m. Pacific. Apple is "investigating and will update the status as more information becomes available."
Update: Apple's System Status page indicates the App Store issues were resolved shortly after 8:00 a.m. Pacific. Search results now appear to be functioning normally.