I think the Guidebooks are still under the "BMC" bit. The commercial bit isn't being floated - so no share deals there! The commercial bit is just about making things more efficient - it will provide services for the BMC, MLTB, MCI, MCofS, and have more freedom to explore new options.
This means more and better quality publications, improving insurance cover, etc. The next issue of Summit has 2 pages on all this - due out on the 15th Nov.