sirius vs xm

go to http://www.xmradio.com/about/about_us.html

xm radio has been around alot longer than sirius
and holds the majority of the marketshare.
sirius has filed on at least 1 occasion for bankrupsy protection
and only has a third of the client basis for satelite radio.
xm has 2 satelites in orbit (rock and roll)
both these satelites are boeing and are of the same technology that the military uses.
these are placed over the east and west coast
this year they plan to lauch another satelite over central north america.
there will also be an additional one launched in 2005.

as for canadian market i have heard that delphi/xm is currently working on the canadian market as we speak.