I don't see how a browser based application would work in Canola anyway. The built in OS2008 browser works with Pandora, although it does ask if you want to abort a script that is taking too long the first time it loads: Just say NO!
...and wait some more.

I like both LastFM and Pandora for a variety, but I have to give the edge to Pandora even though it is sort of too heavy on the browser and has some pauses at times. Depending on the type of music your looking for, one can be better then the other as far as remaining true to the original choice. They both certainly do benefit from a lot of feedback training. The infinite custom stations of Pandora do seem better because they are independent of previous history so past choices do not influence the choices on different stations. I don't really know of a way to make more than one station on LastFM unless you have multiple accounts?