From a math standpoint it would be an excellent choice. It's targeted at sci-vis / math stuff and wants to take over from Fortran. The language designers are performance Nazis, which I consider a good thing. I've been evaluating it with an eye towards OpenGL and game development. I'm afraid there's very little to speak of in that respect presently. Plotting packages that sci-vis people would use to bang out workadaisical answers to things though, that seems to exist fine now. They've also got a pretty good packaging infrastructure for deploying their dependencies.
There is a Triangle Julia group.
http://www.meetup.com/Triangle-Julia-Users/
Cheers,
Brandon