I am expecting, sooner rather than later, that Time Capsule will acquire the ability to do OTA backup of iPad/iPhone. Either that, or that there'll be a second-generation Apple TV that is basically a combined Apple TV and Time Capsule -- streaming media to all your iDevices, feeding video out directly to your TV, and acting as a backup hub and wireless router. The "home hub" with cloud backup is clearly not that far off Apple's current road map ...