So I was on the road Friday working and trying to stay current with events in Boston. When I got home I wanted to check my battery level and had to sweep up and realized I had 8 active apps going. I always keep Playepub up to snatched a page or 2 when I can, Neatly to follow events, Calendar, CB, music in the car etc. I know some don't like the active tiles but I think this was a great example of the z10 multi tasking.
I don't think I've ever had 8 open, let alone opening more so some close.
I'd love to see option added to OS to pin certain ones, or maybe at least favourite them. Another idea idea would be to be prompted which to close, but that would be distracting.
Anyway, good for you making use of the multitasking power this platform brings!