When the phone was announced last week, it included Band 12 support. Looking at the specs for the GSM model, it no longer shows Band 12. As a T-Mobile customer, this is not a good thing at all!
Last week...
Cellular (GSM XT1540) GSM 850, 900, 1800, 1900MHz
HSPA+ 850, 1700/AWS, 1900, 2100MHz...