Couple of interesting points I'd noticed (reading the colophon page): * Using Geo location to map a conference in a location tree, so you can (presumably) drill

Couple of interesting points I'd noticed (reading the colophon page): * Using Geo location to map a conference in a location tree, so you can (presumably) drill up and down the tree to find the right 'level' * Node.js - sound like a real time twitter stream for each conference * Solr for faceted search. Sound like an improvement over upcoming.org in helping find interesting events That's a neat collection of tools.