AT&T (T) and Sprint (S) both announced last week that the HTC One will be available on their respective networks on April 19th for $199 with a new two-year agreement. T-Mobile previously confirmed that it would carry HTC’s (2498) latest flagship device for $99 down and $20 per month for 24 months, however it never announced a release date. According to a Best Buy (BBY) listing, the T-Mobile HTC One will available on April 19th for $249 with a two-year agreement, although it is unclear if this is the 32GB or 64GB model. It should be noted that Best Buy offers traditional T-Mobile contract plans and does not follow the company’s “UNcarrier” initiative.