It sounds like it treats closed apps similar to how Windows Mobile did. In WM they stayed open but mostly inactive, but WM didn't always handle them corrrectly and a Stop command occasionally had to be issued through its convoluted menu system! Of course that was 5 years ago so perhaps it got better with time.

While I have your attention, I read someplace that Android actually runs on top of Linux. Is that true? Wouldn't that just make it a Linux GUI? Don't get me wrong, I love my NC, which is unrooted, but I've never cared at all for Android. It seems rather kluge. I tried a few Android tablets and found them to be about as useless as Windows 98. Actually, Win98 was much more intuitive, but they both seem to crash a lot. I was very pleasantly surprised by the NC.