The Cocoa framework indeed has a lot of peculiar features. For example, you don't have to write IP addresses like everyone else does. Every segment of an IP address is a number between 0 and 255. (You could also say that they are a byte each). This can be translated into a number. So if you take the IP address of macosxhints.com, 207.44.210.206, and do this calculation:
207*256*256*256 + 44*256*256 + 210*256 + 206You get 3,475,821,262. Now if you enter that number (without the commas -- 3475821262) into a Cocoa based browser (Firebird and Safari will do, Internet Explorer won't as it's a Carbon app), you will be at the macosxhints.com homepage. It seems to work in Cocoa based apps. I tried it with Safari, Firebird, and several CLI apps like traceroute, ping, telnet and ftp.
Mac OS X Hints
http://hints.macworld.com/article.php?story=2003052410430949