What is your mobile device doing?

Have you ever looked at your Windows Mobile device and wondered what all of those little indicators mean?  What?  You mean you didn't read the fabulous manual (rtfm) and memorize the indicator section?  Now you don't have to. 

Mike Calligaro posted some great information on the subject to the Windows Mobile team blog about the indicators.  Interesting stuff.  I'd like some indicators to tell me when my connection is smoking fast or sucking wind.