This Freedom Box stuff is new to me, and I'm finding Moglen talking about it very difficult to parse. I'm going to try the speech at http://freedomboxfndn.mirocommunity.org/video/4/freedom-in-t...
If this allows my friends to get off facebook, and allows me to get back the sort of community of distant friends that I had when I was on facebook without the middlemen and any ominous privacy implications, I'm all for it. Also, I'd love to directly share content with non-technical people I know without the overhead of domain names and webhosting.
At the price point of <= $100 dollars in return for an actual physical product, I'm sure I could get most to all of my friends to use it. Myself, I'll just install the software to my HTPC (which has evolved into the central server for my house) for free, but I think that with a price point that low, my non computer-savvy friends would pay to get off of facebook in return for something they could touch, wasn't complicated, and couldn't be shut down at the whim of some corporate board.
Just my thoughts though. If you require a presence on the social web regardless of power cuts, then I guess it's a dealbreaker for you.