I wrote a little program called GmailTeX which adds $\TeX$ capability to Gmail. You can get it here.

GmailTeX now includes the "live" fully automatic mode, just like when you type a question / answer on MO. (Actually, faster than the current MO math preview.)

It

Added 9/1/2010: Thanks to Kristi Tsukida, it is now available as a Firefox greasemonkey script: http://userscripts.org/scripts/show/84589, and as a Google Chrome extension: https://chrome.google.com/extensions/detail/eenhaafocdcfjengcoflbdnoljeaepgb, for super easy installation.

I wrote a little program called GmailTeX which adds $\TeX$ capability to Gmail. You can get it here.

GmailTeX now includes the "live" fully automatic mode, just like when you type a question / answer on MO. Currently, this option in GmailTeX is much slower (Actually, faster than on MO because MathJax lacks the equation cache (jsMath has it). This current MO math preview.)

It is bound to change in now available as a few monthsFirefox greasemonkey script: http://userscripts.org/scripts/show/84589, when the MathJax developers add the equation cache and optimize it as a Google Chrome extension: https://chrome.google.com/extensions/detail/eenhaafocdcfjengcoflbdnoljeaepgb

for speed. But essentially, I've got all I wantedsuper easy installation.

5 can TeX "live" now!

I wrote a little program called GmailTeX which adds $\TeX$ capability to Gmail. You can get it here.

GmailTeX now includes the "live" fully automatic mode, just like when you type a question / answer on MO. Currently, this option in GmailTeX is much slower than on MO because MathJax lacks the equation cache (jsMath has it). This is bound to change in a few months, when the MathJax developers add the equation cache and optimize it for speed. But essentially, I've got all I wanted.