Another question I recently answered on Aardvark, thought it would be useful to more folks as well.
Where can i get the Nexus One in Canada and will it work on Fido?
The first thing to note is you can’t get Nexus One’s that easily if you’re in Canada, since, the Google store that sells the unlocked phones doesn’t like to sell to Canadians. But, if you have a friend in the US… or a proxy and a US mail drop, you can get one. Once you get an unlocked Nexus One, you can activate it with Rogers or Fido using the directions provided over here.