Apple just finished their press conference re: the new iPad. Overall: Thinner, faster processor, front and back cameras, about 11% lighter. See Engadget.com's overview of the new model and how it compares to the original iPad.
I like the tweet I just saw from Dustin Curtis re: the Apple press conference: “Superlative superlative superlative, superlative superlative iPad 2. Superlative superlative.”