Apple Releases iOS 6.1 Beta to Developers
Just after releasing iOS 6.0.1, Apple went ahead and pushed out a developer build of iOS 6.1 Beta 1.
Xcode 4.6 was also pushed out as well.
As usual, there is not a complete list of changes, but Apple does provide information on how developers can integrate Apple Maps into their Apps, as well as improvements to Passbook, and a few changes in Safari.
Let us know of any other major changes you find