We heard during the Lets Talk iPhone event last week that the iOS 5 and the iCloud will be available for users on the 12th of October. iCloud for those of you who do not remember or were not at the event is a system that allows the user to store information (ie. music, document files, videos, movies ect.) and move it to and from Apple devices. So for example, one user could store music he has on his iPhone and then later download it on his Mac and so on.
Right now, iCloud is in Golden Master status with iOS 5 Golden Master, iCloud for Windows Golden Master, and Mac OS X Lion 10.7.2 Combo Golden Master.
We have now seen on the famous Japanese blog, Macotakara:
iCloud for Mac OS X Lion is expected to become available for Mac users Monday or Tuesday of this week; one or two days before iOS 5 comes out.
It is still unclear whether you will be required to update Mac OS X Lion to version 10.7.2 to use iCloud or not. Although the pre-releases have been compatible with beta and Golden Master versions of iOS 5.
This Wednesday we will be surely seeing the iOS 5, Mac OS X Lion 10.7.2, iTunes 10.5, and iCloud for Windows. We will be waiting for the iCloud a few days before then.