Before Upgrading to 2.0.1! HELP

[NiCkStOuCh]

I'm a 2G 2.0 pwned phone on a mac and am waiting for the release to update later today but want to know if updating is going to erase all my data in my app store apps, like i have the todo app and budget app and have a bank app and all that stuff is set how i want, is that stuff goingt to be erased?
thanks

[oo3]

As long as you paid for your apps, just back up via iTunes and restore after upgrade. You won't lose any data then.

[chinese chicken]

the apps and the data you put in the apps, and i think also the settings of the apps will be backed up in itunes...