Looks like due to recent flooding in Bangkok, DevCon Asia will be temporarily suspended until RIM can figure out other alternatives for the event to take place. Here is the announcement from RIM:
BlackBerry DevCon Asia - Registration Announcement
Registration for BlackBerry DevCon Asia is currently suspended as we evaluate appropriate alternatives in light of the unfortunate flooding that is affecting Bangkok. Please check back shortly for more information.
Existing registrations will remain active. More details will be provide soon.
Question should be directed to email@example.com.