I am very happy with the Eee PC 4G 701 I have been using for several weeks now. I am running Windows XP so I do not have the WiFi flakiness the Linux users experience. It is what it is, and it meets my needs very nicely. WinXP runs very quickly (thanks to the nLite program to slim down the install) and there is a wealth of info at
www.eeeuser.com.
As an ebook reader, I'm not going to give it a thumbs up - but I didn't buy it for that purpose. A tablet PC would be the only real way to go for me.