RIM has been blocked by the courts in USA to use BBX as the branding for their next generation mobile operating system.
The company has announced that Blackberry 10 is now the new name of their next update which would power their next generation smartphones.
BBX branding is owned by BASIS International.
RIM had announced the BBX branding a couple of weeks ago. But it resulted in legal troubles for the company as BASIS International took them to the courts.