In-app purchasing coming to Android Market next week

Google has launched the final testing phase for in-app purchases in Android Market products, with the feature set to make its public debut next week. Developers are encouraged to upload and test in-app content and transactions on the Developer Console "right away."

But hang on: First, it's "absolutely essential" for developers to review the security guidelines, Google notes. You wouldn't want the Ring of Doom slipping through the cracks and into the wrong hands, would you? Obfuscate your code!