Just had a chat with Marc Guldimann, CEO of Spongecell in San Francisco. I really love this product. How much time do you spend adding events to your digital calendar? With Evite, Facebook, and other social networking sites, it takes a personal assistant to keep up with events. The result: I just don't go to a lot of events because I don't add them to my calendar when they are first announced or they just never make it out of my e-mail box etc.
Here's a good example of the utility of this product. I'm definitely looking for ways to implement this for some of our clients at Fabric.