Script Summary: Make your GMail address on Google.com clickable. (works on Classic and Personal Home)
When you are logged into gmail, your email address appears on every google.com page, but it does not take you to gmail. That sucks. This fixes it.
Updated: Now works for Classic Home and Personal Home, thanks to punzak. I also cleaned it up a bit and wrapped everything in try/catches so that failures due to future DOM changes will happen gracefully without JS errors.
Updated: Works again as of 3/9/2007