well, a friend updated their iPad 2 from 5.1.1 to 6.1.3 and to today I tried to install from iFunbox some apps, and you know... is impossible install apps withouth ApSinc... wherever, I did look when I selected Facebook 5.2.2 (82131); I found on iPad Desktop... but not work..
I dont know if a mistake from Apple.. but I don't know if a step for to develop other exploit,
this application can do other things like to be used for found new ways for to do the jailbreak unthethered, like PsVita with UNO app.