Hate to say it but there's nothing to be done about this. The market will decide in time if this was a commercially viable decision or not.

Of course, personally I think it's a complete betrayal of hundreds of thousands of users, and reading the marketing BS spewing forth about how great WP7 and its accompanying "ecosystem" makes me feel queasy.

To be fair, I didn't know that the Zune marketplace had 6 million songs in it. But that doesn't really get me excited as I'd need to buy a WP device to use it on my phone. No thanks.