[subprime]

I don't know of any apps that will do that completely across the board although I think it is a good idea. Hell, I can't even find a way to only sync specific groups of contacts, let alone everything else.

The only thing I could think of, which might be more trouble and might not do everything you want it to is set up 2 gmail accounts. Have one sync all of the personal stuff and the other sync all of the business stuff. Then you could switch out the two depending on what you want to use. I don't know how the sync works with text msgs though. Also, I am not too familiar with the Epic, but the Evo has different "scenes" you can select. It seems to be nothing more than changing the shortcuts, widgets, etc on the home screen.