With iOS 4.2 Gold Master seeded to developers it should be a matter of few more days when Apple releases iOS 4.2 Final Update to public. The team behind popular Cydia application on jailbroken phones is working hard to make it compatible with the new iOS release and has in-fact released the very first screenshot of Cydia running on iOS 4.2.

Apple has released the iOS 4.2 Gold Master (pre-final developer build) to the members of Apple developer program, The Gold Master or GM version is supposed to be shipped "as it is" to the public if no major issue is found - these special beta builds can only be used if you have your iDevice UDID registered with a developer account.