Exactly. What I think is that buried inside the OS, tmobile has made Dell integrate the APN: epc.tmobile.com so that regardless of what ever APN you put, the OS would always refer to epc.tmobile.com.
People from the HD7 forums have gotten their devices to recognize and work with internet2.voicestream.com without a problem. So the issue must be the OS itself. It's obviously not hardware based.
I used web2go and my hd2 recognize internet2.voicestream.com without a problem. But as soon as I use epc.tmobile.com[, the hd2 tells me to switch to a new data plan.
It's all in the APN, and I think that somewhere in the OS, tmobile has hidden epc.tmobile.com so that regardless of what ever APN you put, you'll always be referred to epc.tmobile.com.
Someone prove me wrong. And tell me you can get web2go or tzones to work on the DVP.