So what do (did) I think of the iPad on first use? Number one: it's fast! Things happen quickly and smoothly. No. 2: It's pretty! The big screen is very good looking and crisp. There is the problem of glare in the wrong light or angle, however. No. 3: It's heavy! The 1.5 pounds sounds light, and it is for just carrying around, but when you hold it in one hand to read or tap, it wears your hand out! It works best when sitting down and braced on your legs or a table or tilted on a box of Kleenex. The thing needs a stand for extended use. And it should have a variable angle to avoid glare.
One big concern: the lack of a keyboard, except an on-screen keyboard, is not a problem after all. Contrary to the iPhone, because the iPad is big enough, typing on glass is ok. The auto correct feature is generally fine, but very annoying when it changes my e-mail domain from acm.org to cam.org all the time! I wouldn't want to write a novel, but for filling in userid and password, light e-mail replies, and other short work, it is fine. In fact, it is probably better than thumb typing on a small keyboard.