This is the first major review to cover the arrival of many third party iPad apps (i.e., it came out today). It's very long and detailed, and so gushingly positive that it's hard to overstate.
http://www.suntimes.com/technology/ihnatko/2137342,ihnatko-ipad-hands-on-review-040210.articleAfter a week of locked-door testing, I didnt think I could become more impressed with the iPad. After a day of real-world use with real-world iPad apps, Ive come to think of the iPad as more than a nifty mobile computer. Its starting to look -- just starting, mind you -- like the first radical shift in computing to hit the world since the introduction of the Mac more than a quarter-century ago.