Outgrow - Enabling marketers boost conversion with interactive, beautiful & viral quizzes/calculators.
Holo - Mix holograms into videos & photos in Augmented Reality
Quizzes for Pages - Quizzes for Pages is an application to create and share quizzes on your Facebook Page.
Membit - Pin photos to 3d space with augmented reality
Poll Everywhere - Audience response system that uses mobile phones, twitter, and the web. Responses are displayed in real-time on gorgeous charts in PowerPoint, Keynote, or web browser.
Multiverse - Immersive social environments supporting creative artists