Would there be a market for a hackerspace that you could join and then work there on your startup, and in exchange give up a percentage of the company you are working on?
On the one hand it could be a cross between the best features of a managed office, the Googleplex(?), a good cafe, a good library and so on. A dream place to work before you can afford one, all the hassle of managing an office done for you, on a no-success-no-fee basis.
A chef or two, table service, quiet offices, loud offices, gamesrooms, meeting rooms, general business services (power, maintenance, phones, spare hardware, temporary servers, mercenary coders and admins, tech advisors with experience of popular technologies...)
On the other hand, would you trade part of your future company for it? I don't know how much it would need to become viable, given that most companies seem to fail; 1%? 5%?
Also, and more seriously, does it risk sabotaging the founder's we're-working-from-a-shoebox-it's-is-all-or-nothing drive?
One great advantage of this idea is ability to bump into other like-minded people, which is the primary benefit of going a university. On this aspect the idea has potential.