Happening for iPhone brings nearby events to your pocket
Happening lets users discover nearby events via the iPhone's geo-location capabilities and view users’ own upcoming events along with those of friends and colleagues. Users can RSVP to events, search event listings, check the location of event venues using the built-in map, or easily open the venue in the Maps application for directions to the event.
Happening also lets users view event attendee lists, while built-in e-mail support allows users to send event listings—complete with a Google Maps link—to friends and colleagues.
A future update will add sharing to Twitter and FireEagle location updating.