Since several years, Research In Motion (RIM) is always released some early devices that are specific to the developer (the developer) before launching the main device. For now known that the RIM is preparing BlackBerry 10, and has distributed a number of devices, known as BlackBerry 10 Dev Alpha . But for you the developer, RIM confirmed that there will be a continuation perangkan to BB 10 Dev Alpha.
Continuation of this device is a 'revision' of the Dev Alpha is never distributed. Through the official Twitter account BlackBerryDev, a device called 'Dev Alpha B' found minor hardware changes. Minor changes mentioned include micro SIM.
origin source twitter, berryreview