Hello Qubes Team,
Awesome work so far!
I had issues with the official USB/DVD installer, tried everything, UEFI, no UEFI, disabling virtualization etc. Finally installer worked when I used the Fedora livecd generator discussed here instead.
Other than installation, everything works near perfectly!
nota bene - thinkpad CPU is non-default, upgraded to i7-3632QM
Hope this helps!
naede