My Boe-Bot

Hi Everyone Here is my Boe-Bot.
It's a fun kit from Parallax that comes with a great book and bunch of parts. I knew absolutely nothing when I started and going through their lessons has taught me a lot.(well a lot more than I knew before) He has been configured to do most the basic stuff including:
Dead Reckoning
Drive Perfect Circles
Navigating with bumpers
Photovore/Photophobe
Follow a Flashlight Beam
Navigate with Ir LEDs
Navigate with Ping

In the video he is navigating with Ir LEDs and receivers

UPDATE 10/19/2011:

Well sorry it took me forever to actually make this post. In response to ignoblegnome and Ro-Bot-x's comments I made a short clip using the same hardware setup but with frequency modulation. It could definitely a little smoother and more responsive but I hope this helps to show how useful these can be depending on how you program them. 

Thanks