That is the point...I only asked for an app that can tell me if X is available so I can call him and grab a beer and talk. The point is I want to know which of my friends or friends of my friends are available in order to talk him because I do not want to start calling everyone from my list and ask my friends to also ask their friends..and maybe I miss someone this way..also is time consuming and not fun having to call people just to bug them if they are available if they are not. Makes sense?