Deep within iOS 5.1 beta 3 are mentions to two next-generation iPad 3 code names, J1AP and J2AP, as well as ongoing references to Facebook. While digging through firmware code is not a sure fire way of finding out exactly Apple is up to -- it has in the past yielded some results. In this case, they seem in line with a previous account from Digitimes on iPad 3 code names J1 and J2. These likely, though not definitely, refer to the Wi-Fi and cellular data versions of iPad 3.
Another tidbit of information found within the firmware is that Facebook is again being mentioned. As we know it, iOS 4 was set to have Facebook integration but it was subsequently dropped from the OS when an agreement couldn't be reached between the two companies. Could there be more integration with Facebook coming or is this simply legacy code left around, just in case?
Alas, we'll just have to wait and see what Apple has in store for us with iOS 6 but if any of what we're seeing in the iOS 5.1 beta 3 code turns out to be accurate then, we're pretty glad folks still keep checking in there for things Apple may have missed. Jump on past the break, and you can see where the J1AP and J2AP are showing up.