Matthew Richards recently showed a new concept phone from Nokia with Windows OS Mango on board, the W3 model. Nokia W3 has the appeal of a modern smartphone, it comes with a dual-core processor, a 12 megapixel camera with Carl Zeiss optics technology and more.
This device packs an HDMI port, 16GB of internal memory, a microSD card slot (optional 32 GB) and a 2-megapixel front camera. All services that are specific to Nokia (Maps, shop, music) is integrated into the handset, with some using a hub that specializes in Nokia Phone Windows 7 Regarding the design, call buttons and Touch End Call to be separated by a touch of the region with custom features.
This is an interesting model, which is certainly less cumbersome than some other Windows phone concepts I've seen.