I\'ve had a crack at implementing bindings for my own NSView subclass. It works, but there are problems with retain cycles when binding to File\'s Owner from a nib file. Aft
You may want to check out the NSKeyValueBindingCreation Protocol. It lets you create bindings programmatically through code. (Remember to do the work in an awakeFromNib method if you need to reference IBOutlet variables or they could be nil.)