How to block Data Connection?? Anyone know?

[Carlos_P]

I've heard that the HTC and other new PDA phones must have access to internet, because many applications download information or updates automatically.

I was told that sometimes it automatically syncs with Sprint server, even with the Data Connection switched off. And I have noticed connections occasionally being made by some apps.

I've been told that people that don't have internet service on the phones get charged for internet usage by these applications.

So here goes my question: How do you fully disable Data Connection or block from dialing #777 or disable ActiveSync from trying to connect??