[Galaxy Note GT-N7000 General] Jip-Hop:
For the people who don't know what they're missing:

We can run multiple apps at the same time on our Note and switch between them. Maemo and WebOS do this in a much more elegant, useful and consistent way.

On our Note:

Long press to see a list of icons of the six most recently used apps (it does't mean they're running). I can now select the app I want if it's in that list or I can click to go into my task manager (that's a different app) to close the apps. You know the drill.

Long press means no instantaneous response. For multitasking this is the worst choice. The more I multitask, the more I need to wait. My Note is super fast, don't make me wait. Having had a dedicated button (or gesture area like the Palm Pre) would have fixed this. Android is also very untransparent when it comes to running daemonic processes

In WebOS and Maemo it's completely different and much more natural to the user. It handles multitasking by directly manipulating on objects (the running apps - in live view, not just icons, no screen capture thumbnails) and providing the controls (such as closing the apps) from the objects themselves. WebOS does it in the nicest way by flicking them off the screen (like we'll get with ICS only on WebOS it is a vertical swipe). WebOS even allows apps instances (they call them cards) to be grouped. It's one, system wide, way to handle things like tabbed browsing, having multiple emails or contacts open at the same time and switching between them.

I can't have multiple emails open in my Gmail app and quickly switch between them, I can't have multiple video's open and switch between them and because Android doesn't provide a universal way to handle this stuff, all developers implement their own way of handling these things. Like a tabbed file browser or a tabbed internet browser or the example in this thread: overlay apps which allow you to run certain content in windows.. like on a desktop. This doesn't really contribute to the overall multitasking experience. It's not consistent.

The way Android handles multitasking is just against all the rules I learn at university when it comes to Interaction Design.

I personally don't feel the need for OverSkreen on my Note. It doesn't have much to do with multitasking, in the way we generally speak about multitasking: the capability of running apps in the background and switching between them without killing them. It has to do with seeing these multiple apps running on the screen at the same time. This is achieved by having windows... that's a desktop metaphor! Dealing with windows is just too cumbersome on such a small screen device (there I said it, the Note is a small screen device xD). What Microsoft has done with Windows 7 and is doing with Windows 8 has been a real help: sticking windows to one side of the screen to view two windows side by side.

On WebOS and Maemo you can see apps running live in their card/thumbnail view. Comparable to Expose/Mission Control in OSx. But that doesn't help when you simultaneously want to work in multiple apps on your screen.

I've bought Wave Launcher to make up for the fact that I hate the (multi)task switching in Android.