The HTC HD2 has had a very wild life. It shipped with Windows Mobile 6.5, but after it was axed by Microsoft, it quickly became the developer sweetheart. The device has ROMs for nearly every mobile O.S. out there. Today, an XDA-Developer released a pre-alpha port of Android 4.1 Jelly Bean for the HD2. Currently, a lot of things work such as mobile data, calls, WiFi, Bluetooth, and SMS. The camera, Google Now, and browser are all extremely buggy or non-functional, though.
While buggy, this ROM would be a great project for people who like a little adventure. Weather you can use it for a daily driver or not is up to you.