Screw T-Mobile, they've pissed me off with this move. There's no alternative mid-range Nokia at the moment (Lumia 521 doesn't count with no flash and half the ram, plus whatever else it's missing like nfc I think). That Nokia Catwalk rumor better be true, it better come to T-Mobile, and it better be at the very least have what the 810 did. So long 810 accessories... not that there were too many to begin with. Grrr.
Okay. Is there evidence for a phone getting further updates after a carrier prematurely sends it to EOL? I mean really, it came out Nov 14th, what a ridiculously short 5 month tenure. If your understanding is correct, and it can be debranded and have updates directly sent to it, then that's great news. The thing is, this phone is SUPPOSED to be supported for 18 months - isn't that a guarantee from Microsoft? If updates no longer come in for this phone, it'll be time to blow up Microsoft, Nokia, and T-Mobile with complaints...