How many devices can use one iCloud account?
I'm currently working with a school that have bought 15 new iPads. I was wondering whether all of these could be set up under 1 iCloud account, or whether there was a limit to the number of devices that can be registered. The reason for asking this is the we would like to use Find My iPhone to keep track of the devices within the school, and send messages to any that are misplaced, so we can alert nearby staff to return them to us. We aren't interested in music or movies, as they will primarily be used as learning tools, so any restriction specifically on that content doesn't matter to us. The only thing that would is if there is restrictions on app usage within a single account. For example, if we download an app using the single iCloud account, and had automatic downloads switched on for all 15 iPads, would the app be able to be installed on all of those 15? Sorry if this has been a little long winded, and thanks in advance for your answers.
iPad 2, iOS 5.1.1