Twitemperature: How hot is your Twitter?

Twitemperature is yet another tool for testing the热度 (popularity/hotness) of topics on Twitter, but it's somewhat unique. One could say that Twitter has become the Web 2.0 service with the most extensive range of extended applications, and it would be interesting to list them sometime. Twitemperature...

(Note: The word "热度" can be translated as "popularity" or "hotness" depending on the context. If you have a specific term in mind, feel free to clarify!)