When I first heard about Facebook's Paper, I wondered how that conversation could have possibly gone down...<p>"So we're building this great new experience, and we want to call it Paper..."<p>"Isn't there already an incredibly popular mobile application called Paper?"<p>"So?"<p>Some variant of this conversation must have happened, right? It's not like nobody at Facebook has heard of 53 - how did this name ever get out the door?<p>It seems like most of us here on HN think of 53's Paper when we think of 'app called Paper' - perhaps this isn't the case in the overall consumer market (but then again, Paper - 53's, that is - was once featured prominently on Apple.com - not just the app store, but the main website) - but to me at least, it feels like Facebook is using a name which is 'already taken'.