Your answer depends on what you want to do
If it's all email,etc, a Netbook for less $$, then trash it in a year in favor of new devices to come.
BUT-- you can watch movies, read books, etc on the large ipad screen. Go try one: it is hard to put it down.
For heavy typing, a folding plug-in keyboard.
I personally would wait at least for the 3G ipad -- someday it will have a phone and webcam too.