Now that MobileMe is closed, it sends me to iCloud to locate my missing iPad (which is running iOS 4, not 5). But I see no way to remotely play a sound on the iPad (to help locate it), nor lock it, nor wipe it clean. These used to be features of MobileMe. If I don't upgrade the iPad to iOS 5, is there any way to use these features? Any other app besides iCloud that can do this in iOS 4? Even if I *do* upgrade to iOS 5, do these features still exist on iCloud? Thank you.