Looks like on KnC's site, they list Jupiter at 160 x 160 x 200 (I'm assuming cm), and 4kg weight. For those of us who are metrically-challenged that converts to roughly 5ft x 5ft x 6.5ft, and just under 9 lbs.

And that's just one unit...! I'm hoping that they've managed to scale it down a bit, but I've opted at this point to use their hosting plan (whenever they have more info).