This app (http://itunes.apple.com/us/app/graphing-calculator/id289940142?mt=8) seems pretty good, but I would like to make a better version. I am already an iPhone app developer. Is it worth it to try ...
I started working on a location based game for smartphones this past august (www.tuzo.ca). At the time, competitors included Foursquare, Gowalla, and some smaller players but i felt like I could ...