[andrewcl]

It's always been incredible to me that Interface Builder dates back to NextStep, like that's all the way back to 1988! While I don't on the regular use IB, I've always appreciated how easy it is to hook things up and move ahead with a prototype.

[SeanLuke]

Actually, Interface Builder predates NeXTSTEP. Like all revolutionary tools, IB was originally in Lisp. It ran on the Mac.