iPhone SDK: No Multi-Tasking

We've asked whatever happened to the iPhone's Push-Notification Service quite a bit recently, even secretly hoped they may find it too difficult and just start to allow some "favored nation" background multitasking...

Now MacRumors is rumoring that that is exactly what might be happening in a future firmware:

While we aren't sure what the specific issues are, we've heard that as an alternative Apple is considering allowing apps to run as user selectable background processes. If so, this feature would likely come in the rumored iPhone 3.0 software update but would be limited to only one or two processes on current hardware. The next generation iPhone, however, would likely see less restricted background process support due to its improved hardware.

So how does that work for you, fellow TiPbsters? Better than Push notification? Worse? And is a few user-selectable apps enough? If the next gen iPhone allows more multitasking, is that a compelling reason to upgrade in and of itself?