Basically, what Apple has done is to solve all the complaining from users who wanted to do several things at the same time. While this is not 100% multitasking, in the traditional desktop sense, it's a good thing. Consumers won't care about full multitasking if it really works like this. It's all a matter of perception and being able to do what you want to do, as fast as possible, while keeping the sense of speed and a long battery life.