I've written a Maya .ma (ASCII) importer. If you too are deranged and gets masochistic thrills from similar tasks, feel free to go ahead. But do have a look at my own stackoverflow reply to my own initial question first: http://stackoverflow.com/questions/1156024/importing-maya-ascii-to-game/1825614#1825614.
Source: http://github.com/highfestiva/maya-ascii-converter.
