Don't jump the gun. From what I recall of what I read, the Supreme Court essentially struck down most federal regulation of prostitution (which is legal but regulated in Canada), but basically stayed the ruling for a year to give the government time to promulgate new regulations which might pass constitutional scrutiny. The rationale was that the government does have the right to regulate prostitution, but that the regulations in place were unconstitutional for reasons including that they might tend to create unnecessary dangers for prostitutes. Canada currently has a Conservative government (which is nothing like what we think of conservative in the US, but still), so it is a fair bet that they'll try to pass new regulations during the next year.
The Globe and Mail has a good article here:
http://www.theglobeandmail.com/news/...ticle16067485/