Sometime next month developers will get access to the new, Mango compatible, Windows Phone 7 development tools. Apart from supporting new API that will be available for developers, these tools will have the following features:
The mango update introduces the ability to multi target the old and new platforms. Developers who submit applications before the mango update may want to maintain 2 versions at the same time. For this purpose, Visual Studio will provide the ability to share code between the different versions.
Another important ability that was missing in the WP7 emulator is the ability to simulate the device tilt angles, or in other words, simulating the accelerometer. This ability will ship with the new dev tools.
Still with the emulator, up until now it was rather difficult to simulate the location services when building location enabled apps. The update will include a nice location controller which will enable us to simulate location changes. It will also allow us to simulate movement over a predefined path.
Profiling abilities will also be included with the new tools. From now on, developers will be able to profile their application to find any performance bottle necks, as well as profiling the memory behavior of their application.