Think about all the cloud services you use today without even blinking an eye:
-Document sharing and storage (ala Dropbox)
-Basically any or all publications
-Amazon's Hosting Cloud
Arguably going offline might become a thing of the past as Apple solidified the importance of being connected. If your off the grid you won't get the latest version of some animal in the wild (Your OS) or even more sinister if your not an Apple users you won't be getting the latest anything. This might be Steve's best move yet even though the share price got knocked around a bit because he has a loyal audience who love the physical gadgets and now he can pull the ultimate hat-trick of connectivity. Why did Apple choose to push down this road? Because they finally could. Connectivity to the web via any mobile device means there is no need to not be connected.
Hey Verizon and AT&T! Get ready to build out even more bandwidth.