Samsung's i8910 HD-based Windows Phone 7 prototype has probably been the single most publicly-recognizable face of the platform this year, so it should come as little surprise that the Korean giant has come out swinging with production hardware today -- and fortunately, the pair of retail models look nothing (well, very little) like the proto. The Focus is the phone we've been calling the i917 Cetus in leaks, a curvy, glossy slate with a 4-inch WVGA Super AMOLED display
