Nokia 3100 Triband

I was thinking of buying the Nokia 3100 triband (900/1800/1900)to use in Canada, I know it's unlocked as all phones are here in Finland. My question is: Could I use it with either a prepaid service or contract service in Canada? Rogers? Fido? Here in Finland you can buy whatever phone you wish to use with any operator you like...I guess it's a little different in Canada? __________________ you can't use all types off phones over there, you've got gsm and TDMA networks in Canada. so you have to be carefull if you choice a providor... for the rest i don't know more about Canada Mavi forum