Update: Telus is official too, here's their sign-up page for those who want more info.
Bell just went and made it official:
Bell and Apple have reached an agreement to bring iPhone 3G and iPhone 3GS to Canada this November.
For US readers, this is sort of like Verizon and Sprint both announcing HS
So we ask you, our Canadian readers, will you stick with Rogers/Fido, or give Bell or Telus a whirl? Let us know!