Location-based services are really useful in the sense that you can know who is close to where you are at all times, but there remain some spots which are yet to be ironed out. For example, assuming that because a person has checked-in to a place he (or she) is available to hang out is a mistake. He/she might actually be busy. And up until now, there really was no immediate way of figuring that out.
This new application takes care of that. It can let you know about people who are near, and also about how available they really are. People who use this application are enabled to clearly set down their statuses as either free or busy, so that any of their friends will be able to realize whether approaching them would be a good idea or not.
Also, people who use this application are allowed to send push notifications to each other, and save on both texting and calling. They will be able to ask any friend who is busy when he is going to be available to socialize without having to spend a cent.
WhosFreeApp.com In Their Own Words
See who is free to hang out.
Why WhosFreeApp.com It Might Be A Killer
Simply because it covers one of the most perceivable shortcomings of services like FourSquare.
Some Questions About WhosFreeApp.com
Will people ever be able to choose from more statuses? Or is that beside the point? 
