Scheduling:
Create a schedule for your group event. Let everyone know where to be and when.

Mapping & Location:
See it all on the map. Where your friends are, where everyone has been, where the events are, where your friends took photos, where you need to be next.

Chat:
Simplified chat that shows everything going on. One channel for everyone - no need to collect phone numbers and deal with SMS. Media-rich chat stream that shows schedule changes, photos, and - of course - chat.