Unknown O2 smartphone

Can any of our readers help us out here? Slashphone has uncovered a new and yet unidentified smartphone that does not share any physical resemblance to the current batch of HTC devices. The source of the article has already shut down, so everything is purely speculation. This could be a possible prototype or pre-production device for all we know. The addition of a front-facing camera means this Windows-powered smartphone will most probably be a UMTS/3G Pocket PC Phone Edition. It does feature the O2 brand at the bottom though.