At BlackBerry Jam Europe, Alec Saunders, VP Developer Relations for BlackBerry showed us the limited edition BlackBerry Z10 for developers. There are only twelve thousands of these available in the world. At the back of the case, it is inscribed with "BlackBerry10 Developer", together with a running number from 1 to 12000.
Developers who developed on BlackBerry 10 and got their applications approved on BlackBerry World can apply for their limited edition Z10 here, provided that you have previously applied for a dev alpha device. https://developer.blackberry.com/limitededition/
