Sara Golemon, being interested in Unicode as she is, decided to investigate further when she saw a recent post about issues with Unicode math symbols:

Being a whimsical sort, I decided that actually implementing his request would be more fun than simply pish-poshing it. I'm not suggesting this be part of PHP6 (I still don't personally think it's a good idea), but it's a fun exercise and good for a conversation starter...

There's several things she can now do with the special characters including dumping out the results of divisions, comparisons and fractions natively.