The openHackathon will take place on December 13, 2008, at the eXo office in Hanoi. This event is co-organized by eXo Platform and Jason Vu‘s Webpal. You will need to register for this event, only 50 seats are available.
Go to the eXo Platform website for more information on the openHackathon event in Hanoi.
Exo Platform also made an announcement about Barcamp Hanoi 2009. Jason mentioned to me they were organizing it as well. Go to the following URI for more information about the next Barcamp in Hanoi: http://wiki.barcamphanoi.org/