I am okay with the general concept(though I guess it would be a lot better to put a computer on a keyboard, or seriously, on a phone), but I think that claiming this is the future of computing is ridiculous, pretty much the only thing this seems to be good at is being able to procrastinate at work, and once people are aware that you can put a computer on a mouse, that goes away
Everyone with a Kickstarter thinks he's Steve Fucking Jobs. When Steve said things like "magical" and "revolutionary" every presentation, it was annoying as hell, and he came a lot closer to actually revolutionizing the world than Mousebox ever will.
The Motorola Photon 4G had an entire Ubuntu-based GNU/Linux distro packed into the ROM image, and they sold a docking station for it that basically turned the phone into a full fledged computer when connected to an HDMI capable monitor. Its cousin, the Atrix, did the same thing using a laptop-style dock.
A company called Cybernet has been putting full computers in keyboards since at least the early 90s (think Commodore 64 but with x86 guts).
In other words, this Mouse-Box is evolutionary, not revolutionary. I like it, but I'm not blown away.