[tshawkins]

I think Apple could have done with some explanation on this, despite all the anti-compertative conspiracy theories, this has probably got more to do with weeding out apps that wont be able to multi-task on the new OS 4 platform, than being another salvo in an apple-adobe wars. Thats why the Rule change has been couched more in terms of how you can write apps (objective-c, api's etc), and not in terms of how you cant which is pure conjecture at the moment.

[MutantSushi]

Sorry, I think you've failed to grasp what Apple's "Multitasking" is about. They are perfectly happy with apps that do not multitask AT ALL. They are not offering "true" multitasking, but allowing app's to notify system daemons to carry on CERTAIN tasks, e.g. IM notificiations, VoIP, downloading content. If an app doesn't want to do this, and there's no reason an App written in MonoTouch can't do this just as easily as an ObjC Cocoa app, that really doesn't matter to Apple.