We are giving 5 Promo Codes to the first 5 people to follow iAreaCalc on twitter ( @iAreaCalc ) and 5 more to the first one to tweet about us starting now. you can see our app on the appStore: http://itunes.apple.com/us/app/iareacalc/id504642867?l=pt&ls=1&mt=8 Or you can go to our website: www.iareacalc.webs.com