Hey,
Is anyone aware of a way to receive NSURLDownload's delegate methods on a separate thread, i.e. not the main one? I am using an NSOperationQueue to manage them but at the moment I need to use the performSelectorOnMainThread method to get it too work. The problem with this is that it drives the kernel task crazy reaching about 30% of CPU cycles. Curiously this has only happened since upgrading to SL, when NSOperationQueue changed behaviour (not that I am dissing it, GCD rocks!)
Thanks Colin