Per SpaceX post-launch press conference: all payloads delivered safely into orbit.
First stage did not land intact. The first burn went OK. The second (single-engine burn braking to the surface) cut off early: the stage spun, and the roll was centrifuging fuel in the tanks. Pieces of the stage have been recovered. (FWIW, this was with the tanks nearly drained. This may be different from Grasshopper, which has ballast to get its weight up and make it easier to control, possibly in the form of extra fuel.)
Next recovery attempt will be on the fourth Falcon 9 v1.1 launch (for space station resupply, after two communication satellite launches).
There was also a problem relighting the second stage after payloads were deployed; they've identified the issue, and will correct. (This would have been an issue for the comsat launches, as delivering them into their desired orbits requires relighting the engine.)
Not during descent --- it got to the point of doing the second burn, but that sputtered out early because the stage was spinning too fast, and the spin was centrifuging fuel to the edges of the tanks. They haven't actually said that it hit the water too hard to stay in one piece, but that's the (fairly clear) implication.
The spin was due to "aerodynamic torque" (i.e., it was spun up by the atmosphere going down), per Elon's twitter stream.
First stage did not land intact. The first burn went OK. The second (single-engine burn braking to the surface) cut off early: the stage spun, and the roll was centrifuging fuel in the tanks. Pieces of the stage have been recovered. (FWIW, this was with the tanks nearly drained. This may be different from Grasshopper, which has ballast to get its weight up and make it easier to control, possibly in the form of extra fuel.)
Next recovery attempt will be on the fourth Falcon 9 v1.1 launch (for space station resupply, after two communication satellite launches).
There was also a problem relighting the second stage after payloads were deployed; they've identified the issue, and will correct. (This would have been an issue for the comsat launches, as delivering them into their desired orbits requires relighting the engine.)