Just wanted to mention that DCATZ Forums work on mobile phones that have internet access.
Try http://www.dctransit.info/forums/index.php?;wap2 (http://www.dctransit.info/forums/index.php?;wap2)
In fact, I just posted on the mobile site. The default post icon is a mobile phone when you use the mobile site.
Cool huh?
P.S.: For those of you desperately waiting for some very important enhancements I've promised, they're on the way. The WAP thing comes standard with all Simple Machines installs; no time was wasted implementing this feature ;-)