Over on Shalanna's Scribbles they are discussing the publishing industry and what may be next.
Interesting store concept, but I'm not sure how well it might work before POD reaches quality parity with offset printing. It might end up similar to a cross between a gallery (where art is on consignment) and a grocery store (where the cereal company pays by the square foot for shelf space). But if that happens, imprint and genre become more important, and independent writers have to bribe their way into the right aisle.
There's a story there somewhere.