Kudos to SGN for providing at least some internet access to travelers.
SGN is a fairly small, easy to manage airport considering the size of Ho Chi Minh City, but offers most of the amenities of larger airport Venues.
Note: As of this writing (Feb 12, 2011) domestic flights would not allow liquid containers over 100ml – the same as the normal standards – so pack as normal.
I’m in the domestic terminal at Ho Chi Minh / Saigon Airport in Vietnam (SGN) and getting a fairly good WiFi signal from near the business lounge with ID “Domestic Lounge” and no password required. I’ve read that access here in domestic flights is spotty where it’s better in international terminal, especially near “Izzy” ? Coffee – can’t check on that terminal yet – but in a few weeks I’ll be in and out of there several times.
For Airport and Vietnam Flight details see the Ho Chi Minh City Airport official website