I use full-screen zoom in Ubuntu (14.04) and Macintosh everyday. In Ubuntu I can alt-tab between apps and the zoomed window will follow me to the top-most appli

I use full-screen zoom in Ubuntu (14.04) and Macintosh everyday. In Ubuntu I can alt-tab between apps and the zoomed window will follow me to the top-most application, not so on the Mac which will switch apps but leave me viewing the wrong portion of the screen. Both will follow the mouse equally well. On the other hand I prefer the Mac's ctrl-scroll-up/down to zoom-in/out. On Ubuntu I use a couple of key-combinations as I haven't figured out how to do it with the mouse. I guess I'm suggesting to give Ubuntu another chance.