Bell customers have waited too long for a better network. The new Bell network is here, and yes you can buy unlocked phones, add a SIM card and use your unlocked phone with Bell.
However, you can’t use any unlocked phone with Bell. The unlocked phone must be 3G. Blackberry Bold is 3G. I just bought an unlocked Blackberry Bold recently and activated it on the new Bell network. Bell will simply charge you $5 for a SIM card and voila – your unlocked phone is activated!