Finally, a winning combination DORMI + TOPO 2015 Downloading the APPS DorMi-ToPo-Francigena at € 15 / APP of your choice. Push Notifications for updates.
I. Great Saint-Bernhard-Piacenza II. Piacenza-San Gimignano (*) III. San Gimignano-Rome (*)
it is possible to follow the Via Francigena either along the AEVF route or along the historic alternatives without getting lost and finding your sleeping quarters easily, (Unfortunately no printed guide can be accurate; the list of accommodations in particular can change any day).
(*) Other Via Francigena routes available on Google Play