HTC Desire, Ridiculous data usage!?

[Cressalys]

I have the HTC Evo Shift 4g and I know my crazy phone is always syncing everything whether the syncing symbol on the top comes up or not. Try turning data sync off because it sounds like every time somebody on Facebook comments on your status or updates their own that your phone refreshes the app automatically.

The Android Market app refreshes every time there's an update for an app which happens quite a lot.

Do you have roaming guard on? Make sure your roaming is not set on Automatic or else your phone will roam every time you lose your default signal.

Also make sure that you have some sort of app killer. I prefer Battery Doctor as it "kills" your apps to that they only start up when you click on them and when your done with them make sure you "kill" them again so that they don't continue running in the background.

I hope I helped