Microsoft announced today via its Windows Phone Developer Blog the release of a new tool designed to help developers migrate iPhone applications to the Windows Phone 7 platform. While Microsoft reminds developers that there's "no magic wand that will do the work for you," the new iPhone/iOS to Windows Phone 7 API mapping tool will make the process far less painful. Sponsor The API mapping tool is available at http://windowsphone.interoperabilitybridges.com, alongside a 90+ page white paper called "Windows Phone 7 Guide for iPhone Applications Developers." The site also features videos of "developer stories" and a compilation of other resources developers need to get started. Specifically, the API mapping tool functions something like a dictionary, says Microsoft, allowing developers to pick out their iOS API calls then look up the equivalent classes, methods and notification events in WP7.