Aside for no LTE support, the 810 is a solid performer, and with the 8.1 Dev. update one can now run their Apps. from an expandable SD memory card, up to 64 Gigs in the 810..With the higher end Window phones there is no SD card Expansion, one is stuck with a $500 phone that may only have 16 Gigs of total memory..This is the reason Tmobile dropped support for the 810, it was made too good...in a matter of months Microsoft will be in total control of Nokia's production, and by August The newer Lumia's (Mid range devices) will hit the market, these devices will come with quad core CPU's & at least 1 Gig of RAM, 10 MP Camera with LED flash and 4.5 inch Clear black HD display, of course they will lack the bling bling looks that the higher end devices will offer, but will satisfy..I will hold on to and use my 810 until the new Mid range devices come out and I will by one unbranded so Tmobile does not profit from me in that respect, yes I am peaved a bit at Tmobile for dropping support..