for all going to Mfest!! make sure you get this program for your GPS enabled phone and download the database to your GPS units...
it would be great to use this allong w/ our radar detectors its FREE
and works great! heres the link.. have plenty of pracice time before the trip to Vegas.. espically people with i-phones and touchscreens..
i use it for symbian s60 phone (nokia e71)
http://www.trapster.com/index.php