I surf the net by my "cell phone" (which is really a PDA that also has an mp3 player, digital camera, internet, planner, and microsoft docs on it). I use to use a palm treo 750, but upgraded to a blackberry bold just this last month.
http://www.blackberry.com/blackberrybold/
Mainly because I do not want to carry around a laptop, phone, camera, planner, address book, and mp3 player seperately.
It is definately not perfect, and you cannot do anything too deeply, but it is not horrid.
But when I am in the hospital I also take a portible dvd player and some of my favorite tv series.