richard sarnoff has expressed some concerns about the
google book search settlement proposal's eventual effects
on the marketplace for digital books -

http://arstechnica.com/tech-policy/news/2009/02/publisher-speculates-about-a
mazongoogle-e-book-duopoly.ars

"Richard Sarnoff, chairman of the Association of American Publishers,
 speculated last week that the landmark Google Book Search settlement
could create a duopoly in the electronic books market. Speaking at
Princeton University's Center for Information Technology Policy, Sarnoff
 noted that Amazon currently dominates the market for downloadable
e-books. He said that the settlement "forces Google to become a provider
of electronic books with a different business model" in direct competition
 with Amazon. And he said that some aspects of the massive settlement
would be "difficult to replicate" for Google's competitors."