This looks like it might be a handy tool for the Xcode programmer: Accessorizer!
Accessorizer saves you tons of time … Those minutes add up to hours, days and weeks over the lifetime of a project.
Accessorizer selects the appropriate property specifiers based on ivar type – and can also generate explicit accessors (1.0) automagically … but Accessorizerdoes much, much more …
Accessorizer will help provide you with the init, keypath, keyed-archiving, indexed accessors, accessors for unordered collections such as NSSet, copyWithZone, KVO, key-validation, singleton overrides, dealloc, setNilForKey, non-standard attribute persistence (Core Data), locking, headerdoc, convert method to selector, NSUndoManager methods and more.
Well, it does sound handy, doesn’t it now. Anyone out there tried it? Worth the price you figure?
h/t: iPhone Development Blog!

I’ve been using it for 2 years now. Thankfully, V 1.2.x introduced support for @properties. If you want to know if anybody uses this cool tool, just check out the testimonials page where you see numerous folks from Apple and other established software houses using it as well as independent developers. “… a must have for Cocoa developers”. “… totally freakin’ awesome!” etc. etc. etc. http://www.kevincallahan.org/software/testimonials.html