Today I returned my Targus 360 degree rotating case and got the Incase book jacket for the iPad 2.
Really love it. Very professional looking, good form factor, the tilt grooves while looking smaller and shallower than the targus one (was worried about that) they actually prop it up better and more sturdy. Think it's the leather vs the suede material. The targus seemed to slip off the last groove easily.
I have been looking and reading and thought would contribute.