Looks pretty sweet, very much like Haken's Continuum which has been around for a while now, the seaboard appears a bit more like a traditional keyboard though by the looks.

Madrona Labs Soundplane also looks quite similar.

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Just like Continuum. Do want, probably will not be able to afford.
Price not mentioned anywhere, but they're taking preorders already. WTF is that. They're expecting people go like "just take my money, I don't care if it costs 1k or 100k"?

So it's got round keys? I agree that it's easier to draw your hands across, but wouldn't something like this have come out long before if there was a big need for it? I think Fatar has it right with slightly concave keys, but then again, I suck at piano.