Thanks to the fine folks at PR Daily, I learned about this great little video from Howcast called “How to Unlock Your World with Foursquare.” The video does a nice job explaining what Foursquare is and why someone might want to try it out.

This is a 2D-barcode containing the address of our mobile site.If your mobile has a barcode reader, simply snap this bar code with the camera and launch the site.
Many companies provide barcode readers that you can install on your mobile, and all of the following are compatible with this format:
Okay you’ve convinced me. I guess I’ll try this foursquare thing again. That video made it look sooooo easy. I’ll have to let you know how I like it after downloading the app to my iPod Touch.