I was at a local mega-book mart today and saw that Rick is now publishing mini guides to cities and smaller geographic areas than the country and regional books. I think this is a terrific thing--fewer times to have to break the spine of a book and have a section or two bound at Kinko's so I don't have to drag a full volume along including loads of information about places I'm not going. It looked to me like the books were exact chapters taken out of the larger books. Too bad that there couldn't be a little bit of extra information, but it's probably unrealistic to expect new and enhanced content.
So...I think this is another great step towards minimizing the weight of info-paper than we have to haul around.