Apple has introduced a new beta version for Apple iPhone in a very shot span of time after the release of first iPhone 4.0 beta firmware for developers. Apple has also updated iPhone and iPod touch SDK version. However, it is the second release arrived by Apple to developers as known as iPhone 4.0 beta 2 firmware. Beta 2 build is free to download and just for the registered developers.
iPhone 4.0 Beta 2 OS can download to their devices through iPhone developer program. New beta 2 release for iPhone 4.0 OS has update and fix up lot of bugs and previous release loop whole as well. Apple-iPhone developers are expecting performance improvement in this developer testing release. The iPhone 4.0 firmware is already available with iPhone 3G,iPhone 3GS, iPod Touch 3G , and iPod Touch 2G but last two releases brings Multitasking like features.
Registered developers enrolled with Apple program can download and test the new firmware iPhone OS 4 and SDK through Apple Developer Connection.