iOS 6.1 beta 4 released to all iOS developers.
Apple just released it’s final iOS 6.1 Beta. Beta 4.
Beta 4 includes some changes such as the lock screen media control has now changed to the new media controls!
And also Apple has now added a its own re-designed passbook pass.
It does not stop there. There are some more changes. Try iOS 6.1 out ONLY if you are a developer.