The HTC HD2 is a touchscreen phone with a 1 GHz Qualcomm Snapdragon processor, a large 4.3 inch 480 x 800 pixel display, and plenty of other features you’d expect from a recent Android or Windows Phone 7 device. But the HTC HD2 ships with Windows Mobile 6.5. Hackers have been installing Android (and other operating systems) on it for ages, but now a member of the xda-developers forum has released a simple tool that allows you to easily switch back and forth between Windows Mobile and Android.
The app is called RunDroid. The first time you run the app you’ll actually need to use a file explorer to launch the app from within Windows. But you can configure the app to auto-run at boot so tat when you reboot yourphone you can choose between operating systems.
The app works by leaving Windows Mobile installed on the phone’s main memory, but running Android software from an SD card. If you have multiple versions of Android, you can use the latest version of RunDroid to choose between them.