Hey people apple have released SDK and firmware ios4.2 beta 3 for developers and as well as iTunes 10.1 Beta 2.So if you are a developer so you can download the firmware, SDK, and iTunes from the I Phone Developer Center.
The firmware will be compatible with all the iDevices. And it is expected to be released in November.
So stay tuned to know about what Apple is up to with his new firmware and iTunes version.
