On 7/27/11 12:37 PM, Chun Tian (binghe) wrote: > And this free version can only be used on Mac OS X 10.7 XCode 4.1 only runs on OS X 10.7. I don't think XCode 4.0.x―which ran on OS X 10.6―is available any longer from Apple. -- "A screaming comes across the sky. It has happened before, but there is nothing to compare to it now."