Holo - Mix holograms into videos & photos in Augmented Reality
iCaching - iCaching is the all-in-one Geocache manager for the Mac.
Membit - Pin photos to 3d space with augmented reality
c:geo - c:geo is simple yet powerful unofficial geocaching client for Android devices.
Multiverse - Immersive social environments supporting creative artists
GSAK (Geocaching Swiss Army Knife) - GSAK is the all in one Geocaching and waypoint management tool.