1) This app does not multi-task. It just piggybacks off Apple's multi-tasking/save state system. It's just another way (same as Apple's native task bar) of access apps that are in a MT/save state. Any app not yet updated for 4.0 so it will not MT/SS will not show as a preview in multifl0w.
2
) Closing the previews in multifl0w does not close the apps out of a multi-tasking or save state. It even goes as far as to remove it from
's native task bar but does not close them. This can be seem by opening an app the has a loading screen. If you open the app and close it via multifl0w then relaunch it's still in a saved state and will not show the loading screen. Do the same thing from
's native task bar and on next open it will launch from start and show the loading screen.
3) This app is not a replacement for the native task bar (not yet?) if you care about memory management at all. I have a problem with it setting Activator for double press anywhere being as how it does nothing more then just shows preview of recent app to go into a MT/SS and doesn't do a good job of managing apps that are multi-tasked.
Not to mention it messes with things like media controls on the lock screen. I'm not sure if the developer has it set up where the previews 'fall off' after a certain amount of time but they disappear from multifl0w if you let it sit long enough.