I just got into android development. But to learn the ropes I've been working on an app to keep track of miles per gallon that your car gets. So before I pay the fee to become an android developer I wanted to see how many people here would buy this application for $0.99. It will have an interface to enter how many miles you've driven (since last fillup), how many gallons your car took, what the price per gallon is. It will display your average mpg, and the average price you pay per mile driven. It will also allow you to enter the number of gallons that your tank holds, and estimate how many miles you will be able to drive before running out of gas (to be safe I will use 3 standard deviations below the average). Does this sound like something you all would be interested in? If not is there some feature I could add that would sell you on it?