MetroPCS today introduced its latest Android smartphone, the LTE-capable Huawei Activa 4G. This is Huawei's first LTE device here in the United States, and for $149 without a contract (after a $50 instant rebate and a $50 mail-in), we'll happily welcome it to our shores. The Activa isn't going to blow anyone away spec wise: underneath the 3.5-inch HVGA display, the Activa is sporting an 800 MHz single-core processor and up to 32GB of external memory, with a 5MP shooter around back. The Activa ships with a 4GB microSD card preloaded with the movie Kung Foo Panda 2, which may or may not sweeten the deal. The Activa ships with Gingerbread, and everything considered, we wouldn't hold our breath for Ice Cream Sandwich to arrive anytime soon. Regardless, if you're within MetroPCS's LTE coverage, the Activa offers access to blazing speeds on a decent Android smartphone starting at an oh-so-tempting $50/month.