I didn't appreciate loppossum's comments either. I am grateful for the free information available at your site. I made good use of the Apache series, for example.
I've also purchased many O'reilly books, mostly Perl; but I still have an interest in Cocoa. The one thing loppossum said I would agree with is a request for more information about using XCode and it's new controller mechanism. I saw that demoed in a movie at the Apple Developer site, but no details were given.
I still have a few more Perl books to buy from your company, but I am also looking forward to an expanded book on Cocoa programming, updated for XCode.