Great writeup on the latest Dell mini 10 netbook on Ubuntu:
"Microsoft has restricted Windows 7 Starter to make sure it's no competition for the more full-featured versions of Windows 7. "
Here is an ASUS Eee PC on LInux: http://www.amazon.com/8-9-Inch-Netbook-Mobile-Processor-Battery/dp/B001AJNA02
Simmbook on Ubuntu: http://simmtronics.com/simmbook.php
And interesting predictions on Netbooks on Linux here: http://www.netbooknews.com/1586/netbook-market-trend-predictions-2010/