Hey icey, I checked out your posting on Event Gel the other week, definitely an interesting concept, good to see you using the feedback off the forums here, I've always found it helpful.
One thing to consider that I didn't catch when I just clicked the link above, you might want to add a .ics download so people can easily include the event in their calendar, I looked into this for http://coffee.gabandgo.com/sanfrancisco but decided it to not be worthwhile, since the point is to stop in and have coffee for a short period, not 'pre-plan'.
Anyway, google around a bit and you'll find the structure of the file (it's pretty simple), or you can always create a fake event in a calendar program you use, export it to .ics, then view it in a text editor.