Upgraded to WM6.1 yesterday, and had no problems. I have Sprite Backup but chose to do fresh install of only the apps l use regularly.

1. Astraware Suduko 1.4.0
2. AutoFlight 5.3.0
3. Esmertec Jbed 20070802.2.1
4. Gentimer 2.0
5. Ilium Screen Capture 1.1
6. InClose Mobile 5.0
7. MyMobiler 1.23
8. Notepad Mobile 3.2.0
9. Opera Mini 4.1
10. PHM Registry Editor 0.7.0
11. PIM Backup 2.8.0.0
12. Pocket Player 3.6
13. Pointui Home 1.5a
14. Splash ID 4.1
15. Sprite Backup 6.1.0

Magic Button - installed but does not seem to work with as many apps now, I will probably be looking for another app to close applications. - Update - Found InClose Mobile as a replacement has been working great for a month now.

I will not be reinstalling SkyFire browser.