I have seen those apps that allow to use your iPhone and put it close to another iPhone, press an option, and voilà, the contact is added to your LinkedIn profile. Or, at least, without any search, the connection request is sent. So, it only takes a few seconds to get your new contact in your connexions without having to search, and most of the times, cannot find the contact. So, basically, this is great when you attend an event and you need to add several contacts. Anyone would know what is the app that can do that?