Image via CrunchBasePowerTutor is an app that checks your phone and tells you how much EACH component is consuming. It is fascinating. It is designed for the
Nexus One, so the results may not be quite as accurate on other phones, but it is still fascinating look into your phone.
Rating: Get it! (you can always uninstall later)
http://www.appbrain.com/app/powertutor/edu.umich.PowerTutor