Too bad this site doesn't have a feature to help people find local playmates. There should be a search keyed to location information from profiles, with of course the ability not to display one's location and/or indicate whether one is up for play dates. The location would probably be best split into multiple fields, too. This should be something a website developer can throw together in a very short time.
Yeah, but the problem is with liability. Someone could so easily pretend to be a parent wanting a playdate and really be an ax murderer or a child molester. *sigh* The parenting groups I belong to actually do a verification, either by calling and chatting for a while or by actually meeting you in person before you can be in the group.