Application creators can get an early look at the software developer kit for Android 1.5, the next version of the mobile operating system, according to Google. Based on the “Cupcake” branch from the Android Open Source Project, the SDK has application programming interfaces for new features, including soft keyboards. Android phones with the new operating system could challenge the iPhone. Google has also changed the developer tools as well as the structure of the SDK so that it includes multiple versions of the Android platform.
