For what we know this could be the next North American flagship Android smartphone developed by Sony Ericsson for US consumers.
Unveiled for the first time to the public back in November in the EXIF of a couple of photos uploaded on Google Picasa, Sony Ericsson LT28AT leaked a second time two weeks later in User Agent Profile (UAProf) via wap.sonyericsson.com which revealed smartphone’s display resolution (1280×720 pixels).
Now fast forward a month later to today SE LT28AT leaks again through Bluetooth official certification website, the list of its key hardware specifications. The Android devices apparently boasts a 4.55-inch HD 720p Reality display with 1280x720p resolution, which is likely to be powered by a 1.4 – 1.5 Dual-core processor, a 13-megapixels rear-facing BSI (backside illumination — a new type of image sensor) camera with A/F LED Flash and a HD 720p Front camera for video chat and video calls. In other features the smartphone is a 4G LTE enabled device, Bluetooth 2.1, WiFi 802.11a/b/g/n (2.4GHz and 5 GHz), GPS and all the usual.
According to the same source the device will be available in North America (probably US and Canada and maybe Mexico) another super smartphone from the XPERIA series, unfortunately we do not have information about its codename.
source Bluetooth SIG