I've pushed changes to support Mac Retina displays, and the changes are included in snapshots here:
http://www.cs.utah.edu/plt/snapshots/ We haven't yet upgraded various bitmaps (splash screen, tool icons, etc.) to higher-res versions, and the API needs a little more work on that end. But I expect that Retina users are mainly interested in text, and text should now look right (so let me know if it doesn't). _________________________ Racket Developers list: http://lists.racket-lang.org/dev
