This is very cool! I would think the free software movement should be able to
get 10,000 signatures together to crowdfund this. We would need to get a
firmer quote from them in terms of price/lead time; what the exact specs
would be and verify that it would be 100% libre. If the price really is $500
for decent specs then I'd certainly put my name down (although I assume that
wouldn't include a CPU?).
I agree that it would be great if the FSF could get involved with organizing
the crowdfunding, as surely something like this would be a big deal for libre
computing. Have you seen Stallman's personal site? There is an e-mail address
there where you can reach him.
This would be awesome and I really hope it happens! :-)