Check out the vid of the completely hacked 2.0 iPhone. Reportedly not jailbroken but completely hacked allowing for the use of any carrier and any app.

[ame="http://youtube.com/watch?v=JW5wwc9Pa8w"]YouTube - iPhone 2.0 unlock[/ame]

Whats new? Visible changes are:
• Exchange Support finally
• Appstore
• Parental Controls
• SDK Support
• Calculator is more advanced
• CISCO VPN support
• Mail mass deletion finally

The spotlight search is not included

[via gizmodo]