Yes, there are plenty . . .
1) An app that would make Bluetooth useful, so I can transfer files from my phone to my laptop without having to be on Wifi (A2DP)
2) A Video Recording App (from Apple)
3) iWork/Office Mobile, to edit documents on the go (thought Apple would have to make copy and paste first)
4) turn by turn navigation (with voice)
^^^------ sadly Apple stands in the way of all of those (except maybe the mobile Office app)
6) Windows Live app, so I can check my hotmail from the phone