Also, the newest version of Wi-Fi tether located here
seems to work just fine on the device for bypassing T-Mo's modification. As expected, root is required with that application.
As for the dev support. I would happily pay for it. A nice custom ROM, more ASOP, less touchwiz. Granted I would also pay for a lockscreen mod that borrows from the Nokia N9's lockscreen. The always on floating time with notifications under the time is amazingly awesome.