Apple CEO Steve Jobs revealed the much anticipated iPhone 2.0 software that will be included with the iPhone 3G at the 2008 WWDC conference on June 9, 2008. The iPhone 2.0 will feature enterprise support, SDK and new end-user features and iPhone applications.

Apple has previewed iPhone's OS 3.0 on March 17, 2009, at a special event held at Apple's headquarters in Cupertino, California.Macworld: Cut and paste, MMS highlight iPhone 3.0 improvements (March 17, 2009)

1. Landscape calculator
2. Contact search
3. Full iWork document support, Keynote, Numbers, Pages
4. Microsoft Office support Microsoft Word, Microsoft Excel and Powerpoint
5. Bulk delete, move e-mail
6. Parental controls
7. Push mail, share calendars, photo galleries, ActiveSync support in MobileMe

The new iPhone 2.0 will run on AT&T 3G or Third Generation wireless high-speed data network. Detroit Free Press:iPhone 2.0 - Faster and more powerful (June 9, 2008)