I just saw an explanation for why we don't need an app killer for android - it multitasks effectively, unlike other OS.
http://android-developers.blogspot.c...droid-way.html
In short, when we leave an app "running", it sort of freezes right there and then so that we return to the exact state as we leave it. It doesn't consume any real memory, so don't fret when the running app list is 2-page long.
Isn't that a huge advantage over iPhone's OS?