For limited use, mostly voice, the best deal may be with
7-11 Speak Out or Petro Canada Mobility. They use GSM on the Rogers network and unlocked phones with pre-paid as the only option and no out of Canada access. They are operated by Ztar on Dallas.
I've looked at some of those. there were some negative comments over on HOFO about the 7-eleven data, lack of connectivity, etc. Maybe it is better now.
does anyone know if the 7-eleven prepay cards will work with an iphone? It seems canada still considers thing like web browsing WAP browsing for many devices