Boy Genius Report posted some information on a likely HTC Windows Phone Mango device codenamed HTC Eternity. There is nothing shocking about this rumor and the device is exactly what one would expect for a second generation device and successor to the HTC HD7 with some minor specification updates.
This rumored device may have a 4.7 inch SLCD display, which is one of the largest we have seen on a phone. The processor looks to be a 1.5GHz model, similar to the one in their HTC Flyer. Other specs include a rather slow HSDPA radio at only 14.4 Mbps, 8 megapixel camera, 1.3 megapixel front facing camera, limited 16GB internal memory, 802.11 b/g/n WiFi, older Bluetooth 2.1 radio and other standard specs.
While it is nice to see some bumps in specs, I sure hope the final product has at least 32GB since you can't extend the storage capacity with a removable microSD card. I also expect devices to support 21.1 Mbps and higher HSPA+ and LTE networks in late 2011 and 2012.