One in each country with webcams all linked together......and big screens.
We can get each country to showcase an aspect or developer that has a local theme and with the differences in time zones we should manage a whole 24 hours non stop.
Get the spanish board members involved and a few translators in, link up with korea so they can see what we are using their toys for.
Course we would still all need to congregate in each country and Australia is a pretty big country, we could probably get a few people in each state together.
Still no idea what we would actually do apart from watching the big screens though, swap ROMS etc. Maybe show people how to set up the harder emulators, introduce people to programs/add-ons they wouldn't usually have acess to, demo the BOBs and the TV out cables. Flog a few games. A bit like a Tupperware party.
No idea really, last convention I went was a snake show, sold a few snakes, bought a few snakes that sort of thing, had a few lectures on keeping snakes, bought a few more. Went to a lecture on Lizards in Yugoslavia (it was a long time ago) bought a few more snakes.