Not content to flood the market in Android variants, Samsung is starting their roll out of Windows Phone 7.5 (Mango) devices. The release we received this morning was scant on details or images [Ed. note: The image above is from our Samsung Focus review], but a look at the specifications tells us to expect a significant performance upgrade from Windows Phone's first generation hardware. The new models being premiered share similar internals, including a 1.4 GHz single core SoC, most likely an MSM8255 variant, as found in the HTC Flyer and HP TouchPad. But where the Focus S stands a full head over its sister, the Focus Flash, is in display. The 4.3" Super AMOLED Plus display in the Focus S is wrapped in an 8.55 millimeter that challenges the Galaxy S II for thinness. The Focus Flash provides a smaller frame with its 3.7" Super AMOLED screen, but no details on its thickness. Having split the difference on size around the original 4" Samsung Focus, early adopters need not worry that they are going to be left behind, as Samsung has promised to bring Mango to their first generation hardware.

AT&T was a strong proponent of Windows Phone during its roll out, and it seems they're going to double down with the first major update to the platform. Release and pricing, though, remain unannounced. We'll update with pictures when we've got them.