Cool!
It'd be great to use LaTeX to typeset formulas in HTML. Taking Andrew's comment a bit deeper...
Assuming you have some kind of LaTeX engine running underneath, you'd support as many math extensions as the engine has available, right? I'm talking about things like amsmath, amsfont, amssymb, etc.
Same would apply to multiline environments like "split", "align", "gather", etc. right?
