Five fab apps for iPhone OS 3.0 and the new 3GS
Apple Inc. has an interesting pie-slicing problem coming as far as developers of iPhone (and iPod Touch) applications are concerned. All of those first- and second-generation iPhones run the same operating system -- the just-released iPhone OS 3.0 -- as the new 3GS model. But the latter includes new hardware such as a magnetometer, a faster CPU and faster GPU, as well as more memory. If developers build shiny new apps with only those features in mind, they'll limit their market. What to do?