Looking to gauge the market need to an iPhone/Android app that will communicate via Bluetooth to a chronograph. I just purchased a Prochrono last weekend and immediately found the need for this. I know they make a wired USB to serial cable for it along with some software, but I am thinking about a wireless solution using a phone or tablet so you don't have to lug a laptop around. I would like to know what people would value a full-featured software app at. $1, $5, $20? What about the Bluetooth hardware for the chronograph? Ideally I would make the app function with the most popular chronographs. All opinions, gripes, desired features, etc. are welcomed. Looking for honest feedback here. Thanks.