I'm certainy quite interested in the concept.

In general, I love the canola interface and how it's been optimised for landscape view - particularly the album cover view and photo browsing... but, viewing lists of albums and folders etc could work really well in portrait.

The reason the iphone/itouch interface works so well is when you get to a menu that is better browsed by landscape view, you simply tilt the screen.

I Think I'd like to see a Canola theme optimised for portrait view... with all menus scrolling up and down (ablum covers and phots etc).

That said - there are many more features of Canola I would like to see first:
youtube plugin, carman plugin, maps plugin, other bugs fixed etc.

I think for the moment, add the portrait feature to the roadmap... but near the bottom of the list for me.