I feel this may be quickly sliding into Bike Shed Territory (I hope the irony of my using title case is not lost.) Apple's HIG in this area seem pretty reasonable to me. I think menu items are titles and should therefore use title case. Though I did notice Chrome uses sentence case for its menus and frankly it looks fine to me. But it would be much less work just to stick with title case, since most Haiku apps already use that. Also there is definitely a standard title case in American English, and it is pretty much what was mentioned (capitalize first and last word, and all major words.) Thousands of books and articles are published each year using this case. Our problem of "what is title case" can be solved by simply specifying that standard rule. The same can be done for other languages. Defining our own title case rules is just not an option. Finally I think interface guidelines (and therefore interface consistency) are more important than any coding guidelines because we will have a lot more users than developers. So we should be strict here and define rules. We can remove the subjective opinion element a bit by just voting and letting the majority decide. -- Regards, Ryan