| | Re: 8700 using data on its own every day? deleting browser...
For a BlackBerry, it's perfectly normal.
The device itself keeps in constant communication with RIM's network. That's just by design.
As a consumer, you can't block the Browser on the device. (Won't solve your issue even if you could.)
If you don't want any data charges, then you need to remove the data plan from the account through T-Mobile, if they allow it. Most carriers require the plan if you want to use a BlackBerry.