I decided to release my Twitter-based map after playing around with it in one of my upcoming projects.

This site basically tries to figure out where you are through various methods and fallbacks, does a search on Twitter and plots recent and geocoded tweets onto a map.

Caveat: Currently, the latest WebKit nightlies automatically refuse to return a geolocation, but the shipping version of Safari should work. I tested in Firefox, Chrome, Safari, Opera and IE 8 & 7.

Enjoy!