The embargo on iPad reviews has lifted.  From Any Ihnatko's review of the iPad for the Chicago Sun Times:

What happens when computer designers lets go of every instinct that’s hardwired into their DNA, and starts practically from scratch?

They create the iPad. The iPad user experience is instantly compelling and elegant. It’s not every computer and every function. It’s a computer that’s designed for speed, mobility, and tactile interaction above all other considerations.

Check out more reviews that Jason Kottke has linked up from people actually using the device for more than a few minutes.