Ok, here is the result after the update. Not huge, but in a small netbook, any increase is good.
The first number below was stock Vista HE with all the bloat-ware. The next was after some cleanup
and removal of junk. The final is from today and the Windows7 HE update (32bit).
When you see how a dual core Intel iMac fares, you see that since this is a single core, it was about half
as good, so that makes sense.
All in all, Win7 seems to be the good choice and time will tell how things improve.