Yes and change is given in TomTom SD cards ;-) One of your questions just answered, Marvin. No plans for MRUSA to have Canada for now as the 300 cannot fit them on an 1G SD card.
Here in Canada GPS is not yet as popular as over in Europe. I was quite surprised few minutes ago to see a bus with a GPS advertisement. I could not resist, I grabbed my handy PDA phone with camera (i-mate Jam) to take this quick photo ;-)