I wish they'd release a new OS not compatible but with awesome features
They missed a huge opportunity going 64-bit. IMHO the 64-bit OS should have been new and lean, with all the old 32-bit (and 16-bit!) compatibility baggage relegated to tasks running as seamless virtual machines, e.g. "XP mode" as standard on all versions of Win7 and this being the only way to run 32-bit or earlier apps.
Anyway, at least Win7 is leaner than Vista. Still bloated though - after a clean start up with only a few desktop gadgets loaded, it's still using just over 1Gb RAM to do nothing!!
- Ali