Well, that didn't take long...
One of the big downers of doing the Windows Phone 7 to HD2 port was the inability to access the Marketplace, buy apps and run Xbox LIVE games.
Well, evidently it's be "fixed" and by fixed we mean hacked to work. The video above is "proof" and the instructions are of course up at XDA.
We still find all of this a lot of work for basically an HD7--so we're either guessing there's a lot of financially-compromised hackers out there or too many coding geeks. Either way, if this just wet your appetite to dig out your HD2, then good luck! Oh and if Microsoft somehow does some bad mo-jo to your LIVE account, don't blame us, m'kay?