Windows Mobile
This page collects some useful resources for working with Windows Phones.
Devices
On the different device pages is described how porting was done for the specific device. This can be used to get further information on how to port your device
TODO: Update the condition in the table to work generic. |
Tools
WindowsPhoneInternals[1]

WPInternals by an XDA-User allows you to perform tasks like unlocking bootloaders, enabling root access and flash or backup firmware. Some fixes have been made in the GitHub repository, but no new release has been made yet. The list of supported models on the official site is outdated. See the image on the right for a more up to date list.
Windows Device Recovery Tool[2]
The Windows Device Recovery Tool by Microsoft let you recover firmware of Windows devices.
Projects
Android4Lumia[3]
Android4Lumia is a project which aims to built android based custom roms for Lumia phones.
File Collections
LumiaFirmware.com[4]
On LumiaFirmware.com you can find firmware for Lumia Phones.
EDK-II
EDK-II has been ported to various Windows Phones. A porting guide is available here.