Developers: Apple releases iOS 5 beta 4 for iPhone, iPod touch, iPad, Apple TV, iTunes 10.5 beta 4 for Mac

Apple has once again pulled a Friday trigger on an iOS beta, this time iOS beta 4 for iPod touch, iPad, iPhone, and Apple TV, as well as iTunes 10.5 beta 5 for Mac and Xcode 4.2 DP 4.
If you're a registered, paid developer head on over and grab it all now. If you spot anything new and noteworthy, let us know in comments, and discuss away in our iOS 5 forum.
UPDATE: We're getting a bunch of reports that iOS 4 beta 4 is showing up as an OTA update. We tried it and it errors out for us but let us know if you have any luck.
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Rene Ritchie is one of the most respected Apple analysts in the business, reaching a combined audience of over 40 million readers a month. His YouTube channel, Vector, has over 90 thousand subscribers and 14 million views and his podcasts, including Debug, have been downloaded over 20 million times. He also regularly co-hosts MacBreak Weekly for the TWiT network and co-hosted CES Live! and Talk Mobile. Based in Montreal, Rene is a former director of product marketing, web developer, and graphic designer. He's authored several books and appeared on numerous television and radio segments to discuss Apple and the technology industry. When not working, he likes to cook, grapple, and spend time with his friends and family.