This news has been confirmed by  Natasha Kwan, Microsoft’s General Manager of the Asia-Pacific  Mobile Communications Business.

As many consumers have hopped, the HD2 will not be eligible for an upgrade to Windows Phone 7.  This does not just pertain to the HD2, it means no current Windows Mobile phone is eligible. According to Kwan, this is not rumor anymore, it is a fact.  With 5 hardware buttons the HD2 lacks the 3 button configuration Microsoft is requiring for Windows Phone devices.  Although 3 buttons is a requirement for Windows Phone 7 devices, it isn’t believed that this is the only reason for the HD2 to miss the upgrade party.  What it boils down to is missing hardware components.  Although the HD2 seems to meet most, if not all of the currently available Chassis 1 specs, it apparently does not meet all of them.  The big component missing in the HD2 that is expected to be required of all Windows Phone devices will be a pixel-pushing graphics acceleration setup.

For those consumers that have locked themselves into Windows Mobile 6.X devices, at least for the foreseeable future, you have nothing to worry about. Microsoft is standing by it’s 6.X platform.  Soon to be re-badged Windows Phone Classic, the 6.X series of devices will still have support from Microsoft based on the number of users, especially business consumers, and all the business oriented apps supported by the 6.X series of phones.  Don’t let this support fool you, Windows Phone Classic is definitely seen as a dying breed.  Any and all future updates are going to be minimal at best, seeing as how Windows Phone Classic has seemingly overnight become a budget minded business phone, and a phone for start up markets.