This isn't what I would call the first ever Augmented Reality application (there's a number available) although it may be the first app calling itself the first social AR app!
With junaio, end users can visually interact with the world by placing 3D objects into the real world, leaving notes and information about places, and creating cool experiences to share with friends on social media sites like Facebook. Junaio ties existing social networks together with picture-based social interactions and lets users see location-based content through their iPhone display
Esri devMeetUps - locate a developer meetup taking place in a city near you
ERDAS Webinars - Register for a free, online webinar from ERDAS
ILMF 2012 - International LiDAR Mapping Forum, Denver, Colorado, Jan 23-25, 2012
Esri Dev Summit - The Esri Developer Summit (DevSummit) brings together developers and GIS professionals from all over the globe. March 26-29, 2012, Palm Springs, CA
Where2.0 - where the people working on and using location technologies come together to explore best practices and emerging trends in software development, tools, business strategies, and marketing. April 2-4, 20112, San Francisco, CA
See more 
