I heard some rumors that Apple is working on a smart watch. If that's so, then such an idea is hardly innovative: there have been smartwatches around for some time now. They run Android, like Sony's Smartwatch or I'm Watch and there's even the Leikr Linux watch project, too.
Apple fans may not like this, but there's even a Windows 8 smart watch concept!
If the iWatch rumor is indeed true and Apple does launch their smart watch, I hope they won't say they invented smart watches. Well, probably, they'll say they re-invented them or something like that.
Leaving that aside, it's quite clear that open source and innovation are directly related, much to the dismay of these software giants.