
n900
well with the n900 going through the fcc process it looks as being the device you are talking about.
http://www.mobile-review.com/review/nokia-rx51-n900-en.shtml
It looks at their strategy will be both simbian and maemo though it could also be android.
what is a "netbook" if you are talking small computer they already have Internet tablets with the only real difference bing the cpu that they use.