You must be kidding. Are you really saying that BlackBerry Tablet OS is a copy of iOS?
Have you even watched any video of PlayBook running in real time?
I'm not saying that RIM have cloned (or attempted to clone) iOS, but the iPad has been on the market for nearly a year, and in that time they have been in a position to study it carefully to examine how it behaves and incorporate ideas from it (and rectify perceived shortcomings of it) into their design. Given this, I would be very surprised if their product did not look better than the first gen iPad. But by the time it comes to market, the battle won't be with the first gen iPad, it will be with the second gen iPad.
So are you saying that iOS has a gesture-based multi-task, that iOS shows thumbnails in real-time of running apps, that iOS let's you change between fullscreen apps with gestures?
While all these features look great on a youtube video, the total ownership experience is about more than that. There is a good reason iOS does not support full computer-style multi tasking: it kills the battery and takes up system resources. A tablet will have to find the right balance of user features, weight, battery life, cost and operating temperature. A single youtube video will only tell you about (some) user features, it gives no information about these other aspects, and they are just as important.
It's incredible how appletards can only recognize things that favors Apple.
It's incredible how the computer geeks on this forum completley fail to understand the balance required of product design. Apple, with the iPad, chose a certain design philosophy, namely to keep the device light weight, simple to use and maximise battery life. The guys at Google and RIM are differentiating their products by bringing their funcitonality closer to that of a full computer, but in achieving this they will have to make certain other design compromises. It might be price point, it might be weight, it might be battery life.
I would have to ask, though, if your idea of an ideal mobile computing device is something heavy, with limited battery life, that runs hot, that can run smooth 3D graphics and full multitasking, are you sure a tablet is the right device for you? Perhaps you'd be happier with a full spec laptop.