I would agree with an alternate, guest user support not multi-user * support -- iOS devices are designed as single-user devices.* multi-user support is possible because iOS == OS X == iOS ... But the hardware speed, storage, etc. is not robust enough to support multiple users ...Do you want your kids to use up all the storage with their photos, mail, documents? Do you want your work to crawl because your significant other started a long-running background task?