Re: unlock n900 for free CANADA
 

I've been told lots of the sites asking for your IMEI to unlock your device are scams to get your IMEI to use on stolen devices (when a device is reported stolen, carriers may add it's IMEI to a blacklist (somtimes shared between carriers and somtimes not), so people that steal lots of mobiles tend to replace the IMEI of the devices in order to keep them working)