i've seen one!
Someone in the office has one, it's the only one I've seen. And I work in the IT dept, so you'd think there'd be a higher percentage of people in this dept that would be willing to try out the new platform. And from the quick glance i got of it, and brief demo, it did look quite interesting.
However, he's getting annoyed by it. Too few apps and some really annoying UI decisions that mean you have to take several actions when the intuitive step would be one. But that's a windows UI problem, not a Nokia one.