We'd heard that T-Mobile was going to be receiving a new Galaxy S-line phone, the only question was when. Samsung and T-Mobile have now answered that question, formally announcing the Galaxy S Blaze 4G. The phone features a 1.5GHz Snapdragon S3 dual-core processor, a 3.97-inch Super AMOLED display, and will run on T-Mobile's HSPA+ network, yielding theoretical download speeds of up to 42Mbps. The phone will run Android 2.3 Gingerbread, and feature a 5-megapixel camera along with a suite of preloaded productivity apps, including TeleNav GPS Navigator. Available at the end of March, the phone will set you back $149.99 after a two-year contract and a $50 mail-in rebate.

See how the Galaxy S Blaze 4G stacks up to some of T-Mobile's other HSPA+ phones!