Think your cellphone photos are pretty good? Do you have by far the best Instagram of all your buddies? That's cool, but why don't you prove it? This year, the Berlin Fotofestival is hosting a contest and asking you to submit your best mobile photography. The top three entries, chosen by a panel of distinguished photographers, will win cash prizes (as in thousands of dollars) and a chance to exhibit their work. The festival is asking each shooter to submit five photos that "show a serious engagement with a situation or theme of your choice." Check out some of your competition in the gallery above (we think you can do better) and get more info on the contest here. Start snapping!