I have owned several Sony TT series portable PCs - 11" screen with a decent processor, memory and storage space, etc. Sadly, Sony has ended the TT series since the "netbooks" have eaten into market share., I snapped up a fully loaded one with XP installed. When this becomes filled up, I am not sure what I'll do. Netbooks just don't cut it if you like to travel and have some on-board capability. I run Labview, Quickbooks, and several other programs that use space and require a real OS. Netbooks have their place, but not if you actually develop stuff rather than want to have only a virtual existence.