Let's do a thought experiment. Let's pretend that we did not yet buy an 810 and we were aware that it is EOL and we were aware of T-Mobile's history with the Lumia 710 or the HTC Radar. Would you buy the 810 and simply hope that it might get supported? I wouldn't, nor would I think it would be wise to do. By the sweep of a pen the likelihood that the 810 will be well supported through the next couple of years becomes a very problematic idea. I for one cannot simply just buy Catwalk when it comes out in the next few months, I am going to be paying this $360 dollars over the next two years, and I feel badly for those that might have bought it outright for $450 or $500 as I was contemplating at one point.
My main point is what type of company would have people "wait and see" if it gets support or not. If I was T-Mobile I would be very explicit with customers for two reasons, one to build good will with my customers and two, to make sure that I was able to sell through the supply that still remained in the channel.
The vast majority of us just want a meaningful statement from T-Mobile that the phone will be supported. A tweet like "We still support the 810.
^AB" is a step forward, but not exactly a well defined policy and given T-Mobile's sketchy history of support for "older" WP devices, I hope you forgive us if we are a bit concerned that something that was just released five months ago is now EOL.