Thanks for the tip – what files did you move for backup-assistant?

Anything you remove you can simply put back and it will start working again.

Any app you remove you can download a replacement for in the market. In
fact, I removed Facebook so that I could download the most recent version.

I’m not sure about Latitude or Talk – I’d check Androidforums.com, I’m
sure someone there knows if they can be removed, and how.