Day 79 - Five Mobile Conditions for Social Apps

It's a cliche at this point but astounding mobile growth continues.  What's different about building social apps on mobile than it was on the desktop.

1. Smartphone apps can access your address book, bypassing the need to build your social graph on a new service.
2. They can access your local photo library, uploading your photos to different websites is a nusance.
3. They can use push notifications rather than emails. The millennial generation generally don't use email.
4. Smartphones provide geo-location.
5. Crucially, they get an icon on the home screen.