This was a very interesting and inspiring topic. I read through every post and I now have a question or two to ask.
I have owned a Samsung Behold _ONE_ (not II) for almost a year now. I received it slightly damaged (a few pixels in the center of the screen were tinted blue) straight from T-Mobile. I decided to ignore it and not bother with exchanging it as I could live with it. This was a large disappointment from the start, and ever since I have been losing interest in the phone by the day. It is slow, sluggish, it randomly restarts, there have been times where I had to flash the phone just to fix it, there were times where accessing the USB menu would restart the phone, and it locked up/froze constantly. I have struggled with this phone for a year now, and have been told in-store by T-Mobile representatives to try out a Behold 2. Now, I'm only one year through with my contract out of the two years I am forced to work with. However, after reading up on the Behold 2, it seems nothing has changed! I was promised a firmware upgrade (the Behold came with the 3D icons firmware) on the Behold I, and BH2 owners have been promised an upgrade to Android 2.x. After researching more and more on the phone, the BH2 should not even be sold on T-Mobile's market. I am glad I looked into this before purchasing the BH2, and am glad I have stumbled accross this topic. Frustrated with the support provided by Samsung on T-Mobile's part, I now ask: Do you think I would be able to pull off a stunt as described by the OP with the Behold I? I am simply considering leaving T-Mobile when the contract expires, no questions asked. If I were able to get the Vibrant, a phone that shows a promise in future-support and community-support, my plans and opinions would change. Samsung has simply not delivered. The Behold series is a joke.
So what do you think, is it worth a try?