I guess I will have to explain my unintelligent comment for you. Even though it is seriously unintelligent, you didn't seem to understand it. Kind of odd but ok.
How many apps can you interact with or use at one time. With its 12+ running apps. How many of those apps can you see running? How many of those apps can you hear running? The answer on my Nexus 7 is 1.5. I can see 1 app running and I can hear 1 app running. Making the app I hear a half. The PlayBook you can see and/or hear several apps running at once. It really wasn't that hard was it?
Please explain to me how you are using all those apps on your N7 all at once, cause that's some magically stuff right there. I'd love to see screen shots of your 12+ opened and running apps all at once. All of them just sharing that same screen space. I mean since you can run all those apps at once, I guess the YouTube + Pandora test is no problem for your N7. I sure can't do it on mine. But what do I know.
Background processes don't necessarily equate to real multitasking. You do realize that right? My PC has 84 background processes running right now, yet I only have firefox open. That's crazy man I'm using 84 programs right now. Just multitasking like a beast. LOL