Apple today released the iPhone OS 3.0 beta 5 for the developers just a week after the beta 4 was released. Along with the iPhone OS 3.0 beta 5 Apple has also released a pre-release version iTunes 8.2 for developers. You need to download and install the latest iTunes 8.2 pre-release in order to activate iPhone OS 3.0 beta 5 on your Apple iPhone or iPod touch.

Many users have reported that can a significant improvement in YouTube app. The YouTube app on iPhone now plays the high-res version instead of the low-res OTA version when connected via 3G. The iTunes 8.2 Pre-Release blocks editing of the carrier file also. With iPhone OS 3.0 beta 5 hacked MMS no longer works. If you have already done updating your iPhone to OS 3.0 beta 5 then do send me your feedback.