I wish Ballmer would retire.
Multitasking? I understand that it will accept push technology and pause v. run in the background. That's a better design. Why? Because an app with a memory leak can drain a battery faster than a storm drain in a monsoon. And we all know how well our iPhone batteries last, which is why I have 2 iPhones.
No, this is not true. All modern operating systems use preemptive multitasking. That means the OS limits how much cpu time a process is allowed to use and when that time is up the OS takes control again. It would be easy to limit cpu usage of background processes to 1% or 5% or whatever (or more, if the user explicitly allows it).
Push service is a great feature. All mobile OSs should offer this. But it is not a true replacement for multitasking in all cases.
Christian