I don't see any need for a new guidebook -- for figuring out what and how to climb things in the Gunks.
I couldn't agree more.
The problem is that the format and color of the Williams guidebooks is old-fashioned and uninviting, and the distribution availability is not very good -- so that leaves the door open to new entries.
But then? Williams Guide book are more available than any other guide book I know of and I find its style and format preffereable to others, especially new one that are picture and advertisement books in disguise, and with comparatively little content to boot.