Unfortunately as I work in Lausanne it's a bit difficult for me to get to Geneva before 18hr00 :-)
However, I figure I'd responde though I'm not sure if I can "promote" this other event on the same day, but for those interested in Drupal:
The "Suisse Romande" Drupal group will meet up in the evening on the 27th February from 18hr00 - in a bar (possibly Scandale).
Full details to be confirmed.
Event should be posted up shortly (hopefully by Wednesday) with the exact details. The group is "restarting" from being slightly inactive for a few months so if you guys are able to head to the Geneva Web Group event in the HD Centre then you can always come for beer with some other Drupalers.