MUJI Online - AM/PM Organiser Notebook - A5.
http://www.muji.eu/pages/online.asp?CHK=Y&PID=2550&Sec=1&Sub=4&V=1
So awesome. Rather than dividing up the page with a line per hour, there's a small clock in the center of the page that lets you write relative to radial time in open space. "Can be used as a notebook, or simple diary. Each page represents 12 hours, and can be divided as required."