I pondered and was tempted by a Linux Netbook but I know I wouldn't always have it by my side, this might be different for you if you always carry a bag/briefcase.
The only thing that is already always with me my cell phone, so I plunged for a QWERTY Smart Phone the E71 , so far it's answered all my needs. I've been recording my experiences with this phone here at squidoo.com/nokia-e71-smart-phone .
