Proposal for new category: p2p databases

[balupton]

Would be good for a comparison table between Redwood, Orbit, Textile, Hyperspace, HyperDB, Sonar, Noms, Titan, Gun.

Comparison table rather than just listing, as it would be more valuable to know how they differ, rather than just that they exist.

Perhaps it can become a collaborative comparison from the different project authors. Which would certainly ease consumers finding the right solution for their use case, as well as facilitate collaborative (and competitive) technical discussions between the teams.