There is the Presenter Video Express tool for Mac, which is a small part of the Presenter product. But other than that, no. I believe the issue lies in how PPT on the Mac OS deals with add-ins, and that is what makes Presenter non-viable on the Mac. You can always look at using Captivate, which will work with PPT content, and has a Mac OS version. The Captivate team manages Presenter, so you will find much of the same functionality between the two tools, but Captivate is a much more robust application. than Presenter.