The HTC Mondrian for AT&T has appeared in leaked ads, but detailed specifications are still limited.
WMPoweruser has gotten their hands on two upcoming advertisements for the HTC Mondrian smartphone to be offered by AT&T later this year (see videos below). The new Windows Phone 7 smartphone was revealed by a MMS profile earlier this summer, which also confirmed that it'll be an all-touch phone with a WVGA capacitive touchscreen. The HTC Mondrian should also be powered by a 1GHz Snapdragon processor.
The HTC Mondrian is expected to ship with a bunch of pre-loaded HTC Widgets, some of which are demonstrated in a video by MobilityDigest below. As far as the smartphone's diagonal screen size, memory and camera specifications are concerned, there's still no information available. The HTC Mondrian is custom built for AT&T, meaning that the increasing range of "HTC 7" smartphones will offer variations depending on each carrier's strategy.