In BC, there is a $1.40 difference between the GST (7%) and PST (7%), so I guess some of the taxes are not taxed here.

It's true, though, that the dealer has no control over that.
There are several threads going on about the Yaris (unlike, for example the Civic

), but I think this could be a VERY useful one. Hopefully people will get the message and use this thread for buying related comments!! Thanks for starting it GabL.
Edit: I'll be going to the dealer in a few hours (they haven't opened yet

) and will report later today.