- when you set up WiFi sharing, you can choose any arbitrary username and password you want; you only need to set that up on the device on which you activate "Share this Book". When you select "Share this Book", Notebooks will present you a page with details; the most important are the two URLs.
- on the other device, you need to change the WebDAV settings: enter any of the URLs mentioned above in the SERVER field, and enter the username and password you have selected in the step above in the appropriate fields, too. It does not matter which name you give the settings, but server, username and password are essential.
- you do not need any program on your computer, because in this setup, all communication is between iPad and iPhone
- now, start sharing on the first device, and then select "Sync -..." on the other. That is all.