Both look nice. The S1’s teardrop side/back design is a bit odd — they tout an “off-center of gravity”?
The S2 seems more interesting as a concept to me thanks to the dual-screens. But won’t it require some sort of customized version of Android (Honeycomb) to fully work as shown? And using the two screens for one piece of content will probably suck.
Of course, all of this hinges on Honeycomb being a lot less buggy. But it does have until the fall, when these are set to launch.
How long until we see a Sony app store too? At the very least, clearly they’ll want all their media on this device through their ridiculously named Qriocity thing and via PlayStation (assuming their network ever comes back online). Where does that leave Google in the mix?