I thought the Courier was a great idea not just for the dual screens but the software as well the scraps and notes seemed like a great idea.
There's also lots of gloriously amazing tech that the Microsoft Research division produces. However, from what I can see, for whatever reason, much of it doesn't see the daylight.
That put directly in the iPhone price range, and the KIN was never designed to compete with the iPhone or any other real smartphone.
Too bad. I heard the sync software for it was actually pretty fantastic.