I came across the following: NSArray *array = @[object1, object2]; It seems to be creating an NSArray, but is this array instance an autoreleased object, or must I release it?

I read all about the new Objective-C literals, and used Xcode to convert my old code, but the indexing code didn't change. I changed it by hand but then it wouldn't compile. I saw a post that said ...

Are the new Objective-C literal syntax additions (e.g. @3.14) only available when developing for OS X and not iOS? That's what the Xcode update 4.4 seems to suggest. If so, why?

It's always been possible to create NSArrays (and NSDictionaries/NSNumber) with vararg method calls, like: [NSArray arrayWithObjects: @"a", @"b", @"c", nil]; Can these be created with in-line li...