Cleverly subtle.
Swipe with finger to scroll, tap to press, and even pinch-to-zoom are as basic interaction as interaction goes. You only need a second to get them if shown, and most people can even discover them instantly without being shown.
It's actually an action you might not even use at all -- since you can do it in another way (home and click the app you want to open next).
It's not a common action since using apps is mostly a seggregated affair. Now you use this, after some time you go and use that. You don't usually flip from one to the next all the time.
Can't speak for cats as I don't have one.
I keep seeing this idea around Win 8 discussions. You aren't compelled to buy it.
So a company no longer offers a product you like, that doesn't mean you have to buy something you don't like from them.
Even if you do have to buy, you make the choice - Win 8 and trade offs or Mac or Linux or Chromebook or second hand Win 7. It's not compulsory that you have Win 8.