A VC: App to App Handshakes At first blush this seems fairly trivial, but the reality is that this is a huge issue.  Fundamental to success.  In fact, I read an article about the Ubuntu mobile OS the other day and how it would struggle to find footing, if they focused on this aggressively and did not worry so much about things like swipes in the UI, they could find success.  Why?  Because there are so many great apps that can accomplish a small task, but true ecosystem greatness will only come when they can work together.