Ideally we'd have a couple of servers managing the backend, with all intermediary transfers through WRT54G's with custom firmware. If anybody lives around the CBD and would be interested in helping out in any way, post here and we'll make contact.
Until we get a good couple of nodes going it'll be purely experimental, but fun, I'm sure..
Also, if anybody can point me in the direction of another decent WiFi supplier (like gowifi), that'd be super. I'm just looking at cost comparisons at the moment.