When trying to install iCloud for Windows I get the error:
"The installer encountered errors before iCloud Control panel could be configured. Your system has not been modified. To try these operations at a later time, please run the installer again"
I am using Windows 7 64 bit, Itunes 10.5 64 bit. My iPhone 4 and my iPad 1 both have iCould installed OK.
I also tried to "run" as administrator - same error.