Marcelo did a nice post on running Canola in vertical mode and has a video demonstrating the result:
The vertical mode is possible by using Xrandr, which has been ported to Mamona and the Chinook version of Maemo (os2008) by our [INdT] Mamona team. Really cool stuff. Great work guys :-)
Now let's hope someone has the time to adapt the interface for vertical usage.
PS: Leo reminded me to tell that not one line of code was made to the Canola2 before filming this video :-)