If you hold down command while dragging Safari's scroll bar, your Word document will not lose its focus. It would be nice, however, if there was a better way to manage the focus of visible apps and windows. I often get mixed up with my two displays. I might be looking at one app, and, thinking that it is the active app I'll hit Command+Q to close it, only to be horrified moments later when I learn that I've closed an app which is on the other display and had unsaved data, eek! To avoid this I installed "Focus," which represents the currently active application with a big, friendly icon.
http://www.versiontracker.com/dyn/moreinfo/macosx/19017
I use my iPod to tell the time. Most people I know use their cell phones to tell the time. I believe the kind of content delivery you're interested in will be integrated into the iPod. It won't be a cell phone per se, but it will allow access to the iTMS and maybe it will even give your notebook internet access.
Thinking up totally new products for Apple to sell in an emerging market is pretty tough. I think Apple could make a decent wireless digital projector, and price it within range of the average consumer. That's my fantasy, anyway.
The Monitor is the Revolution
The Next Big Thing: The Apple Watch