By now, you've likely read a bunch of iPad reviews. There's no point in reading another review outlining every dimension, spec and feature. That'd be pretending that the iPad is like any other product you've seen before, and therefore can be reviewed using the same template.
No manual necessary; Access to nearly all iPhone apps; 10-hour-plus battery life; Bright 9.7-inch IPS LCD screen; Three external buttons; Multi-directional accelerometer
Highly reflective screen; Slippery; No multi-tasking (yet; "Only" a few thousand iPad-specific apps (so far