What killed the Kin?
I have a feeling WP7 will suffer the same fate if Microsoft doesn't get on the ball. It needs to get devices on the largest carrier. Although there have been hints that a WP7 device is hitting Verizon (and also one for Sprint), it seems Microsoft is always falling behind. I mean, look at the Kin devices ... they were working on these for years, and by the time they released, they were way behind other smartphones' capabilities. The lesser capabilities (no apps) and the teen target market pretty much killed the chances that customers would want to pay $30/month for unlimited data, as we all know.