What is "RBN 2.0"?
RBN 2.0 is the Rock Band Network update that goes along with some of Rock Band 3's new instruments. Using the tools in RBN 2.0, authors can produce Rock Band songs with keys, pro keys, harmonies, and pro drums. RBN 2.0 also lets authors customize song practice sections and gives authors greater flexibility with camera, lights, focus, and post-processing to make the greatest visuals possible.
For more information, visit the blog at http://www.rockband.com/blog/rbn2-announcement.