The foursquare Experiment, are social financial services possible?

In early April a little known new application caught my eye, foursquare. What caught my eye wasn’t the jazzy interface, or the badges. Instead I was curious as to why Yahoo were willing to pay US 100 dollars to acquire the business. So I have been experimenting with the user experience in search of the business' value and how such an application could be a integrated part of a financial services.

Stay tuned in for the complete notes in early May, and feel free to contact me with any specific questions or comments on foursquare.