I'm not sure how large the "New to Cocoa" population is at a Sillicon Valley Cocoaheads meeting, but I'll vote against it, since it'll be my first one! I think an interesting alternative that would help new and old alike, would be tricks and tips concerning not only Cocoa, but it's related APIs (Core Animation, Core Image, etc.), and the tools we use on a daily basis (Xcode, Maybe an Intro to using Instruments, etc.). That way we get a nice catch-all that isn't too boring for the vets, and provides useful content for newcomers.