Today’s iPhone OS 4 announcement packed in tons of new features, or at least felt like it. Apple says today’s line-up, including multitasking, iBooks on iPhone, Game Centre and more represents just seven of 100 new user features. So what are the other 93? The first one appears to be a new calculator.
Apple’s demos, and the first video of iPhone OS 4 in action, show a new calculator icon on the iPhone. The last time Apple changed the number-crunching app’s appearance, it was to add a scientific mode when the phone is tilted into landscape mode.

Apple's old iPhone calculator
As yet, it’s not clear what the updated iPhone calculator brings, but it suggests Apple’s in-house app developers have been beavering away on enhancements for the standard iPhone apps we know and love.
Steve Jobs lifted the lid on an enhanced Mail app for iPhone, including a unified inbox to bring all your mail accounts into one place, and support for threaded e-mail conversations.
What else would you like to see updated in iPhone OS 4? Give us a shout in the comments box below.
UPDATE: Engadget reports that the iPhone’s photos app now supports Faces and Events, just like the iPad.
Out Summer 2010 | £TBC | Apple
