Only a day after releasing iTunes 10.3 that supports new cloud-based syncing between devices for purchased items from the iTunes store, Apple today quickly released a small update. Apparently, after the initial update a number of iPhone users were experiencing a problem with an "unknown error (-50)" showing up when trying to sync their devices. Various attempts at troubleshooting including resetting the iPhone and rebooting the Mac did not help, and it was apparent the problem was a bug with iTunes 10.
Steve Jobs couldn’t have said it better:
Today it is a real hassle and very frustrating to keep all your information and content up-to-date across all your devices, [...] iCloud keeps your important information and content up to date across all your devices. All of this happens automatically and wirelessly, and because it’s integrated into our apps you don’t even need to think about it—it all just works.
In addition to iCloud and iTunes 10.3, WWDC attendants also witnessed the unveiling of iOS 5, Apple’s next-generation mobile operating system that includes enhancements such as a better notifications system, similar to MobileNotifier, system-wide Twitter integration, an improved Safari browser with innovations such as a Reader mode, similar to what’s found on desktop versions of Safari; as well as a the final version of Mac OS X Lion, which will ship later this summer, and is slated to include new multi-touch gestures, an enhanced Mail client, an iOS-like application launcher similar to iOS’ Home Screen.
You can get iTunes 10.3.1 from Software Update, if you haven’t already, or Apple’s download page.