Mathematica has a command line API. They are almost certainly not porting much of the math functionality to javascript. They'll just run an xmlhttprequest, le

Mathematica has a command line API. They are almost certainly not porting much of the math functionality to javascript. They'll just run an xmlhttprequest, let the server do its thing, and display the result. The most difficult challenge I see is getting nice 3d renderings, and some of the other more graphically intense features the desktop version has.