Of course, you can just ignore the pop-ups and nothing seems to change, though if you don’t login to the Apple ID then your device won’t be backing up to i Cloud and you’ll see a “last backup could not be completed” error message until the issue is resolved.Quite a few users have experienced this frustrating issue as shown in various Apple discussion threads, another similar issue exists with some versions of i OS with constant i Cloud backup password requests in the form of a pop-up.
i Phone users receive all software updates for free, while i Pod Touch users paid for the 2.0 and 3.0 major software updates.
As of i OS 4.0, Apple no longer charges money for i Pod Touch updates.
No official name was given on its initial release; Apple marketing literature simply stated the i Phone runs a version of Apple's desktop operating system, OS X.
Apple announced i Phone OS 2, at the i Phone software roadmap keynote in March, 2008, and it was released to the public on July 11, 2008 alongside the i Phone 3G.
By the way, Mac users may also find that i Cloud in OS X is asking for the password randomly with Messages, Face Time, or i Cloud usage, and if you encounter the issue on one device, chances seem to be that you’ll encounter it on another soon after as well.