Back in July when Pocket-lint spoke with HTC's global PR and online community manager Eric Lin, he told us of HTC's commitment to Windows Phone 7 and explained how the company had, "every expectation" that there would be a HTC WP7 device available "on day one".

And, with the recent leak of two HTC Mondrian themed AT&T adverts, it seems highly likely that we know exactly what device Lin was referring to.

The HTC Mondrian is said to have a 4.3-inch screen with a WVGA resolution. It runs on a Qualcomm QSD8650A/B 1.3GHz Snapdragon processor that supports both GSM and CDMA.

It's apparently got a camera with HD capabilities and at least 5 megapixels. There's also a digital compass on board if a previous leaked xda forum's analysis proves to be accurate.

We're fully expecting a Windows Phone 7 official launch on 11 October, make sure you check back to see if the Mondrian makes it as a launch device.