The first concept revolves around a scavenger hunt. A user can create a hunt by picking various goals & inviting friends. By allowing teams, each team member can download an iPhone/mobile app that would track and allow messaging between teams and team members. At the end of the hunt each user has a photo album, status updates, "wall" posts, etc of all the things the did while they were in Vegas.

The second concept is an application that revolves around creating brackets with your Facebook friends based on a sporting event, (March Maddness). You invite your friends and each player picks his/her favorites multiple brackets all based on the sporting events.