Until April 8, 2012, Unity is offering the Android and iOS export addons for FREE! Those are normally US$400 each, so I snatched both of those up even though I don't have a Mac, & iOS requires a Mac to develop on. I might get a Mac one of these days, who knows? I'm not promising any games anytime soon. I've barely learned the basics of Unity, and game development is time-consuming. This is just a possibility, and the possibilities just increased. I might even find ways to make other kinds of apps with Unity.