I found this interesting, particularly as a number of authors are now going down the self publish path.
http://www.digitalbookworld.com/2011...-are-relevant/
Hatchette talks about their role of providing the author with access to the widest possible customer base possible, yet mentions DRM and territorial restrictions almost in the same breath.
Worth a look as it provides some insight to how a mainstream publisher currently considers their role in the economy to be.