beyond the standard virt support, is it worth looking at
IOMMU support? (intel calls it VT-d, while AMD calls it AMD-Vi. are
laptops shipping with that feature these days? is it immediately
useful?)
As for VT-d and AMD-Vi, I believe these -are- the standard hardware
virtualization support. They're definitely available in a lot of
Intel processors (even some Atom processors), and isn't there some
intel page that lists features of all their processor lines? You can
check for VT-d in whichever one for the laptop.