I have an old Asus EeePC with a 10 inch screen as my ultra-portable machine. When I travel I can throw it into a carryon bag and still have a lot of room for other stuff. I don't mind the small screen that much; my main gripe is the keyboard. It's just too small for easy typing. What I'd like to upgrade to is a Thinkpad X100e. I think it will still satisfy my need for exceptional portability, and it has a full size keyboard. I must confess I also think its 11.6 inch screen will be somewhat nicer than my current 10 inch screen.