At XDA developers, dcordes and other developers have gotten a working Linux kernel for the HD2, enabling Ubuntu, Android, etc to be run. While very little works, and it crashes within roughly 30 seconds of running it, Android is now working on the HTC HD2. Watch the video for details, or visit the XDA thread for more information. Please note, however, that this is not an Android build for the HD2. Rather, it is a build for other devices that can be used to try it out. Stay tuned for more.