Don't think anyone has brought this up yet:
http://www.royalbank.com/cards/avion...cursions2.html
<font face="Verdana, Arial, Helvetica, sans-serif" size="2">When you take advantage of Avion point transferring between June 1 and July 31, 2001, you'll earn double British Airways Executive Club miles. That means 10,000 Avion Points can be converted into 20,000 Executive miles, bringing free travel to you faster than ever before! </font>
This would make it similiar to the US Diner's Club deal, except you get 1 Avion point per Canadian Dollar.