This is really cool ... I wonder how useful it would be in actual practice. Seems overwhelming and hard to keep things organized in such a small space -- but you never know. I look forward to seeing more of this!
It does looks promising comparing with any other 3-d simulations I have seeing. But it still far a way from practical use. If big software vendors like Microsoft will follow the lead I think we have a better chance to get it up in short period of time otherwise it’s a long short. Also it looks interesting as file manipulation it's still not truly 3-d. I think in a future monitors will instinct and will be replaced by hologram projections devices then 3-d OS will be appropriate for that.