Why am I writing about this? Because in the realm of portable electronics, one of the fastest paths to market for EESU technology would be the exact type of device Apple is seeking protection for with this application. EEStor could create an external battery that wouldn't need to be customized for use by Apple, HP, Dell, etc etc.
Note: Apple Insider broke this story.
Note #2: No April Fool's Joke in this article. Or is there?