Bad news for the HTC HD2 owners: your beloved WinMo smartphones does not qualify for a Windows Phone 7 upgrade. The reason is more than ridiculous but you can't do anything to change the situation: the HD2 packs five hardware buttons instead of only 3.
Yeap, the HTC HD2 has a zippy 1GHz Snapdragon processor, a huge capacitive touchscreen display of high resolution and lots of other goodies but according to a Microsoft representative the HD2 "doesn't qualify because it doesn't have the three buttons [layout]".
According to another MS spokesman, the reason for HD2 to skip the upgrade to Microsoft's latest OS for mobile devices is actually the lack of some hardware components.
Well, Microsoft remain silent on the actual full hardware requirements for Windows Phone 7 OS so speculations are abundant.
Source: GSMArena