Translated from the german-lang'd page, these are the cornerstones of Avant Gaming:
Reality gaming - via GPS, WiFi, mobile-phone etc. players are networking in an urban environment.
Augmented reality - Real and virtual elements are joined, e.g. using virtual avatars playing on a real table or vice versa.
Immersive/interactive web gaming - Web-adventures, which are not declared games and are played via browser, search-engine, e-mail, chat(bots), etc. recently used for marketing purposes.
Alternative Inputs - GPS-coordinates, neurofeedback, speech, webcam, treadmill, etc.
Alternative Outputs - electric shocks, text messages, etc.
The fun begins at 7p.m. at metalab's Vienna headquarters.
Update: Avant Gaming event has been rescheduled one week in favor of the presentation of Australian musician Jamison Young's charity-project "hungry artists feed hungry people".