Yes, you read correctly. Not only did Microsoft launch Windows Phone 8.1 Developer Preview today, the company has also launched a new OEM portal that allows you to register as an OEM. You can now build and ship your very own Windows Phone device.
"We want to help you bring great phones to market quickly and efficiently. Through a well-defined end-to-end process, the OEM portal will provide you with the information you need to design your hardware, customize your phones per market, and manufacture them for retail sales," Microsoft stated.
The process to become a Windows Phone OEM is tied with the Dev Center registration system. Head over here to get started. As an OEM, you will get a high level overview of Windows Phone development, and begin the process of reviewing and signing licensing agreements. You will also get detailed documentation and all the tools needed to create a Windows Phone - even marketing tools!
The hardware you select for your Windows Phone is based on the Qualcomm Reference Design, allowing you to choose from a catalog of hardware components such as camera, display, memory, sensors, and touch controllers. You can even re-use existing Android phones you are building. Microsoft wants you to offer the best possible personalized experience.
Once you complete registration, Microsoft must verify you as part of the standard developer registration process. Prior to building and selling phones, the OEM Distribution License Agreement must be approved by you and Microsoft.
Head over to Microsoft's Windows Phone OEM Portal to learn more on how to get started. You can also take a look at the entire workflow below.