Apple announced today that it plans to introduce the next generation of its mobile platform, iOS 5, as well as a new cloud service called iCloud at the Worldwide Developers Conference next week on Monday, June 6. This is a highly unusual move for Apple, which normally tries to keep their center-ring announcements secret until the scheduled event.

In a press release, Apple says that iOS 5 will be unveiled alongside iCloud and OS X 10.7 Lion. However, there are no follow-up details on any of the software; the only official tidbit on iCloud is that it is an "upcoming cloud services offering."

There have been unofficial trickles of information on all three products over the last few months. iCloud is rumored to be a "digital locker" type service, not unlike Amazon's recently released cloud services for storing music. iOS 5 is expected to be a major overhaul to the operating system and may include features like over-the-air updates and a new mapping capability, though it will likely not make its way to related devices until this coming fall.

The week before any Apple event is often a time of rabid speculation and digging on the part of news outlets because Apple usually tries so hard to keep its new products under lock and key. Now that Apple is trying to take control of the information flow nearly a week before WWDC starts on June 6, we wonder if we'll see more official details emerge on iOS 5 and iCloud in the next few days.

UPDATE: The Wall Street Journal said today that Apple has likely finished negotiations with the four major record labels, but similar licensing with music publishing companies is still underway. Furthermore, Apple also appears to be working on deals for streaming movies and TV shows via iCloud, according to CNET.