UPDATED: Beta back! iPhone OS 4 beta 3 now available for developers

Continuing their two-week cycle, Apple has just released iPhone OS 4 beta 3 for developers. You can download it now via developer.apple.com.
What bug fixes and new features lurk within? We'll have to wait and see (and keep an eye on the comments below...)
UPDATE 1: Apple has (temporarily?) removed the beta download from their developer site. It's not clear if there's an issue or not yet, but we're keeping our eyes open and will update again when (we're assuming not if) it returns.
UPDATE 2: The beta is back up. Go get it. Again.
[Apple, @TUAW]
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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.