Microsoft just released a new Bing Maps iOS SDK. This new SDK gives developers a set of Objective C classes to develop iPhone and iPad applications within Xcode, along with documentation and several sample projects to help them get started quickly.
The iOS map control supports Bing’s road, aerial and hybrid aerial map styles, and includes the ability to add pushpins to the maps and access the user’s location via the GPS to locate the phone on the map. More information available on the Bing Maps Blog.
Need a Bing Maps SDK for another mobile OS? There is an SDK for Android on CodePlex, and of course not to forget the Bing Maps SDK for Windows Phone.