What this guy said. When it comes to working, having multiple machines is a bit of a drag. I want the portability of a Macbook Pro etc, but when it comes to 3D applications, I want more power than any mobile GPU can offer in a lightweight and compact solution. If Apple was offering this as a solution for a similar price, I would be all over it. To be honest, it's disappointing to see that it looks like they've just used a normal size PSU in the box, given there are plenty of power supplies designed for servers which fit in a 1U enclosure. As for size, ultimately I want something that I can put in a carry-on bag when travelling. Early days I know... and good on them at least for brining a product to market!