Thanks to :trends for pointing out WHISHER it looks like a fab tool for sharing or as they put it 'global collaboration wifi' which sounds very grand, especially as just right now they appear to only have 3 users here in blighty. Connecting the communication hubs of London, Birmingham and er Newmarket. I couldn't get it to load but that's not saying much. The explanatory graphics are great and a sound lesson to many an application provider.
