just a rough estimate for the nokia lumia 810 windows 8 phone for tmobile, and also would the htc 8x be better? i really just want the lumia for the exclusive apps like nokia drive, city lens (really cool imo), nokia music (are there any apps like nokia music that could also be downloaded for offline use with no charge?) i kind of like the 8x's look better and it has gorilla glass for sure while the 810's official site page says it has it but almost no one else says so