installed win7 build 7000 as well. Tried builds 6800 and 6956 before, and this feels the most stable and usable yet. I have been wondering which OS to stick with (Dell Linux Mini, Ubuntu, Ubuntu Netbook Remix or Win7) and so far Win7 is the most pleasing to use.
I am using a standard 16gb model, but with the 2gb RAM upgrade. Currently not running a virus checker and need to decide on something lite to use (if at all).
This generally feels like a tight slick version of vista, with some definite nods towards Mac OS (on the task bar).
Combined with Google Chrome, this is giving me the fastest browsing experience yet. Happy for any questions....