MathML: the Revenge

Hey, it looks like they fixed the MathML font problems with Firefox under Mac OS X when I wasn't looking.

Hmm, I wonder if blogger allows MathML:

$\frac{\left(Y+A\right)\left(2Y+X\right)\left(\frac{{\left(X-2Y\right)}^4}{{\left(X^2-4Y^2\right)}^2}+1\right)}{4Y^2+X^2}$

I guess not (at least, not without some template fiddling)