Hi, I found this interesting article http://www.appleinsider.com/articles/09/10/06/html5_assault_on_adobe_flash_h... , describing how Adobe plans to port it's Flash to the iPhone via LLVM. I have never programmed for Flash (I hate Flash), but I know, that they are using garbage collection for their ActionScript. They are planning a first release for end of the year, so I think they are running already gc-Code on the iPhone. That means: it is time for the first port of MacRuby for the iPhone! Bernd