[Atheist]

I've been teaching myself Xcode / Cocoa / Objective-C programming for the last year or so. I finally decided to delve into GCD. I couldn't believe how frickin' easy it was to add multi-threading to my app. I had several places where I was doing intensive non-UI related tasks that really needed to be relegated to another thread but just hadn't gotten around to it. Imagine my surprise when I discovered I only needed to add a couple of lines of code!

BEFORE

Code:
	[bundle extractArchive];
	[self setDownloadStatus];
	[self showGrowlMessage:@"Extract Complete"];

AFTER

Code:
dispatch_async(dispatch_get_global_queue(0, 0), ^{
	[bundle extractArchive];
	dispatch_async(dispatch_get_main_queue(), ^{
		[self setDownloadStatus];
		[self showGrowlMessage:@"Extract Complete"];
	});
});

Could they have made it any easier?!? Granted my app will only work with Snow Leopard, but that's okay.

Anyone out there have any experience/tips with regard to GCD?