Way back when in 2008 when the first Android ports where first being started, the devs told everyone that the market would be off limits, because each device has some sort of embedded key that identifies said device to Google's servers...and yet here we are, nearly functional Android ports for a slew of devices with full Market support. I am adviseing this person on my personal experience, if you want to run Android as well as WP7, I would get and stay with the HD2 as the HD7 is more than likely never going to run Android.
Verizon Motorola RAZR LTE
Acer Iconia A500
Custom Stock 4.0
Acer STOCK 3.0->Custom Stock 4.0
HTC S620 Excailbur->HTC Wizard->HTC Juno->HTC Herald->HTC Tytn II->HTC HD2/HTC Shift 9500->HTC G2/SGT ATT->LG G2X/SGT ATT->HTC Sensation/SGT ATT->Motorola RAZR LTE/Acer Iconia A500
PARADIGM SHIFT!! Now on Verizon USA.