It wasn't specified in the email, I believe, but based on who emailed me, I was accepted for the function theory project.
NAU = Northern Arizona University, they're doing some really neat stuff with PDEs. MAXIMA is a program run out of...uh, Minnesota, I think. It's more applied mathematics than anything else. Was accepted there for dynamics of systems of lasers. There's some other neat stuff there, too.
Yeah, I go to Cornell and am researching under a professor that's also running one of the REU topics there. As far as my background goes, I'll have completed all of the usual undergrad courses except for topology by the end of the semester. So, dynamics, PDEs, real/complex analysis, linear algebra, group theory, differential geometry, stuff like that.