When we hear about killer apps, usually they aren't on the iPhone. Now we have a title that just might prove worthy of that title. Rated 12+ for frequent / intense and realistic violence, customers are giving Modern Combat 2: Black Pegasus 5 stars out of 5 calling it "a real war game" citing its enhanced graphics and realism. With 15 real military weapons and plenty of locales, a variety in gameplay, full walk-and-shoot mechanic in addition to cinematic moments like gunning your enemies down from a .50 Cal, and more, Modern Combat 2: Black Pegasus for the iPhone seems to truly deliver the full war-game experience sought after by so many gamers. Check out the screens and trailer for yourself after the break and see what is being touted as "Modern Warfare 2 for the iPhone" first hand.