I read the Architecture astronauts article by Joel Spolsky again recently (http://www.joelonsoftware.com/items/2008/05/01.html). In it he mentions the various "File Synchronization" platforms and says "Nobody cared then and nobody cares now, because synchronizing files is just not a killer application."
With the massive success of Dropbox and the way Box.com is getting the mindshare amongst users, would it be right to say "Joel, you got it wrong"?