I've been using it for a bit here, and I must say it's slow almost to the point that it's unusable. And this is with a decent-specced PC. I tried Motocross Madness 2 (a awesome game that doesn't work right on 7) and it was almost unplayable. There's still no video acceleration (unlike VMWare or VirtualBox) and it only lets the VM have 512mb.
Don't get me wrong, I am a fan of virtualization, but if you want to run XP apps, you'd be better off dualbooting XP, or just not bothering updating to 7 and stick to your XP installation.
Yes, I do like to say it like it is.
