That sounds a little scary!
Of course, your own target audience may be different from those surveyed, so you've got to profile your audience, know what kind of kit they've got, and base that decision on hard facts. But do base it on actual facts and not just some vague sense of locking out XP users though. ;)
I hope this will not be a big issue for the 2D game I am developing..
Thanks kubera, thanks mhagain.