i have an ipad and an android transformer tablet and i can honestly say the transformer is the best $600 bucks i have ever spent in my entire life.
(399 for tablet 150 for docking station before taxes.) Samsung 10.1 is great but the transformer works as a notebook also which makes it by far the best android tab. (docking works as an extended 6 hours battery life including the 10 hurs of battyer on the tablet alone)