I've played it a few times at two different locations and while it looks really good, to be honest, it didn't wow me.
If I understand the business model, the intention is to develop and sell the hardware as a platform with Skycurser just being the first game. The point *is* to limit it to arcades and not sell to home users.
It's a cool idea, but without a really impressive game, I don't see it happening. Then again, the game isn't complete so maybe it'll play better with a few more revisions.