If you're a developer, break out your phones and get ready to download the latest BlackBerry OS for testing. Please understand and read this if you are NOT a Developer: THIS IS NOT A COMPLETE OPERATING SYSTEM !! It is designed to test apps. So, if you AREN'T going to test apps for phones, please don't download it unless you have a spare device to test stuff out on and don't mind errors.
You've been warned and please note that BlackBerryOS.com assumes no responsibility if you install this on your current device and something goes wrong.