The team here at @nvite has been hard at work on something that we think will change how you interact with others attending the same event as you.
We're calling them GuestCards.
We're excited about what's going on behind the scenes. Once you RSVP to an event we're able to find a little more about you — such as who your friends are — by using an algorithm we wrote to cross reference various social networks. With the user testing we've done, we're seeing it's a nice balance between "Ah-ha" and "Wow, awesomely scary."
Hope to see you at an event soon! :-)