Not really. I am not nearly ignorant enough to imply that any of the various aspects of desktop multitasking will be viable or well suited for a mobile platform

Not really. I am not nearly ignorant enough to imply that any of the various aspects of desktop multitasking will be viable or well suited for a mobile platform any time in the future, nor would I want it to be. The fact that Apple doesn't support proper background services outside of the very basic 3 things they let an app do in the background, only support for bg notifications through a timer or their own push notification server. I mean, I understand the power assumptions that Apple is making and claiming as benefits, but it just seems limited. I think of several applications I use that would not be implementable on iOS, certainly not without many major modifications including some weird use of the iOS push note-server.