
As has been widely discussed, while the iPhone 3G and second-generation iPod touch are compatible with Apple’s iOS 4 released yesterday, they do not support all of the features of the updating operating system. Multitasking has been the highest-profile feature unsupported by these older devices, but Apple has also noted three other unsupported features: Bluetooth keyboard support, home screen wallpapers, and data protection.

At today’s WWDC 2010 keynote event, Steve Jobs reviewed the upcoming iPhone OS, now known as iOS 4. Previously announced at a special event in April, the OS update will include multi-tasking, a unified inbox, folders, and other features. Newly-announced today is the inclusion of Bing as an additional search engine option as well as the iBooks app, which is currently only available for the iPad.






