Most people will use the registry hack anyways to disable metro.
For people who don't know how, they have to pin all applications to the right side of the metro interface, just like you could with Microsoft BOB.
I'm running the developer preview in VirtualBox. I think I can get it for free when it comes out since my laptop included a Windows 7 license, and I can get it through school.
In which case, I'll do a review (from within a virtual machine of course).