There’s just so much you can do with the domain, but here’s a few ideas:
- Make some really useful/awesome fitness apps for iOS, Android, and/or the web
- Charge like 99 cents each, or have in-app-purchases for “workout plans” and the like
- Make free versions with ads. Make your first million. And repeat. Again.
…and it comes with bonuses (like the full rights and source code to a bunch of already-made fitness apps). You can get more information on that at the quick landing page I set up on the Fitness Apps site.