Hi all, project developer at Cosmology@Home here. We're launching a major update soon which we've been beta testing over at beta.cosmologyathome.org. One of the things this update adds is support for OSX, and we could use more beta testers for this. If you'd be willing to participate, checkout this thread or just point your client to the url above. You will need a 64bit processor and Virtualbox installed. Any credits you gain on the beta server will transfer over once we upgrade the real thing. Thanks for your help!