Today the Minister of Finance announced new rules on mortgages in Canada.  In my opinion, most home owners are not effected, some investors will be.

Read here the official release:  http://www.fin.gc.ca/n10/10-011-eng.asp

Read here some excellent commentary:

http://www.canadianmortgagetrends.com/canadian_mortgage_trends/2010/02/new-mortgage-rules-the-good-the-bad-the-ugly.html