Here's a little more:
1. limit it to one photograph per photographer on one page
2. Keep it to 2010 photographs done with a digital Leica M
This would keep the content down; make the layout easier; limit the photos that could be used; make the book cheaper; make a 2011 book more plausible.
One photograph per photographer could really highlight the variations in content, technique, and post-processing that run through the M-thread. It's harder to see that when you're scrolling through the screens. I't be fun to see it in a book.