I'm having mixed luck with activating my Pre2 on T-Mobile. I have to hand it to the T-Mobile people, they have bent over backwards to help me. The fellow in the store sold me a pre-paid data-only plan for $10 and threw in the sim card for the price. Keep in mind that I have thus far spent $10 only with T-Mobile. That's why even though I haven't been successful yet, I have to give them wild props for the level of help they have tried to give me.
Long story short, it didn't work. I spent over half an hour on the phone with a tech support rep who googled her **** off trying to find info about the Pre2 that would help. She could verify that my device was connecting to their network, but being rejected. She thought maybe the data-only plan wouldn't work for what I was trying to do, which is activate the phone and then switch to wifi only. She admitted that she was guessing a bit since she hasn't seen a pre2 and could find nothing in their internal docs about it...
The end of that conversation was that I should go back to the store and see if they would let me borrow a sim to activate the phone.
Back to the store I went and the gentleman there let me try a variety of sims including the one from his own android phone. None of them would get past the step of signing in to my profile.
Once I got home last night, I tried one last attempt. While it was grinding away trying to connect, I managed to issue the command to put it into devmode. What resulted was a half-on/half-off device that is a bit confused. I can see that I'm receiving signal, and if I try to call voicemail I actually get through to T-Mobile enough to get the voice telling me I don't have voice service. I can connect via wifi, but so far I haven't been able to access the app catalog successfully.
If anyone has any suggestions, I'd love to hear them. After Christmas I'll try some more to get the darned thing working fully, and by fully I mean with the app catalog. Since I'm using it as a development device only, wifi is fine, but I'd really like to get to the catalog.
Before anyone asks, I can't make it my full-time phone because I'm on contract with Verizon until this time next year. That means I got the phone knowing I'd never get to use it as a full phone, so I am willing to live even without the catalog if necessary as a dev device.