Thanks for mentioning it - HN Kansai co-organizer here. We had our last event last friday and you can find our presentations online here (one on the Raspberry Pi, one on an upcoming app "ContextPower", and one from Sacha Greif on "Side Projects"): http://www.youtube.com/playlist?list=PLPbAAnPEAdq6bgpvuarNAg...
Yes, I think Super Deluxe is a good place for an event like this. Last year I went to the Mobile Monday App Exhibition [1] there and it was a nice open space that allowed people to move around and mingle.
I would be interested in organizing a meetup in Phnom Penh. For no other reason than to see how many people here read HN? Is there someone I need to talk to before organizing the event?