I *think* that the Canadian 500 and 505 user interfaces were in English only, so they did not bother to try to sell them in Quebec. The 300 and 600 are bilingual, so will be sold in all SonyStyle stores, as well as Future Shop and Best Buy.
I called Sony awhile back and asked if they would ship the 505 or 700 to Quebec. The sales rep said yes, no problem. I asked if any SonyStyle stores in Quebec carried the readers. She said not likely, but she had heard of a few stores in the Montreal area that kept a few units in the back that they brought out on request.
I also called a SonyStyle store in Brossard, and they confirmed that when the new models are available, they will be sold in all stores across the province.