If you're interested in developing OS X applications with a lisp, you should check out Nu — http://programming.nu — It's a Cocoa-native language built on the Objective-C runtime, that's flavored somewhat like Common Lisp.
I've developed stuff on Nu before, it's magically easy compared to other language binding frameworks for Cocoa. I still use nutest as a testing infrastructure for projects that use exclusive objective-c.
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If you're interested in developing OS X applications with a lisp, you should check out Nu — http://programming.nu — It's a Cocoa-native language built on the Objective-C runtime, that's flavored somewhat like Common Lisp.
Additional info:
● A talk by the gentleman who created Nu, Tim Burks, talking about why he did so: http://www.viddler.com/explore/rentzsch/videos/13
● The Google Group for Nu: http://groups.google.com/group/programming-nu
● The source (Apache License) on Github: https://github.com/timburks/nu
I've developed stuff on Nu before, it's magically easy compared to other language binding frameworks for Cocoa. I still use nutest as a testing infrastructure for projects that use exclusive objective-c.