Updated with pictures of the smartphone under glass

Samsung's flagship superphone has taken its sweet time crossing the Atlantic, but when it rains, it pours -- just like AT&T and Sprint, T-Mobile's getting its own variant on the Galaxy S II forumla. Cleverly dubbed the "Samsung Galaxy S II on T-Mobile," the dual-core handset will sport the same upsized 4.5-inch Super AMOLED Plus display as its Sprint counterpart (compared to the original 4.3-inch design) but with a slightly curvier casing and possibly some internal surprises. Samsung's announced that all three US Galaxy S II models will have 16GB of internal storage, 8-megapixel autofocus cameras capable of 1080p HD video recording, 2-megapixel front-facing imagers for video chat, "4G" modems and both an accelerometer and gyroscope for gaming, but T-Mobile's playing this one close to the chest -- the carrier isn't talking detailed tech specs, pricing or availability quite yet. We're physically sitting right in front of Samsung's grand unveiling right now, though, waiting for the show to begin, so we may have more details for you right here in a matter of minutes. Is this the Hercules we've been waiting for? We'll let you know.

Source: Samsung press release, T-Mobile

Photos and video after the break!

Well, we can't tell you much about this one since, you know, it's under glass. Still you'll notice it looks a lot like the AT&T version, save for that Netflix app right on the homescreen.