Oh, I'm so jealous! I wish I could participate in a meet-up. I'm currently living in a southern Thailand town so that's not likely, but I suppose that could change at any time.
Because of the Thai Buddhist culture I'm actually surrounded by people of mixed gender, but here it doesn't seem to be any kind of an issue worth mentioning. I see transmales with their girlfriends and transwomen with their boyfriends but there aren't any support groups because they just get on with their lives as is.
One of my friends is a pretty Filipino transmale, but he doesn't seem to care about it, although openly admitting that's what he is.