Yes, the Blackberry phone is a GSM phone. GSM stands for Global System for Mobile Communications. http://electronics.howstuffworks.com/question537.htm
You mean Blackberry? The Blackberry phones are smart phones that can be GSM, CDMA and those things.
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No it is not even a GSM phone, it is an iDEN phone, See the link below.
You can find a cover for a gsm blackberry at any cell phone store or kiosk in the mall for cell phones and cell phone accessories. You can also buy them on amazon or ebay or other sites.
Blackberry is it's own company. The phone is compatible with any service that includes GSM technology.
As long as the Blackberry phone you will be using on the GSM technology of Telus is 3G capable, then it is possible.
No
Some popular brands like RIM Blackberry, Samsung, Sony Ericsson, Motorola, LG have phone models that are offered on GSM carriers and they also have phones offered on CDMA carriers, however, if you want to know what phone models have both GSM and CDMA technology, then some examples are the Blackberry Storm 1, Blackberry Storm 2, and Blackberry Tour.
According to Zain mobile they do. It needs to be an unlocked GSM phone or a Zain phone that accepts a SIM card.
Not yet, Im pretty sure someone out there is trying to figure out how to. Straight Talk runs on the Verizon's network so maybe/possibly the Verizon Blackberry phones might be the best candidate.
GSM Blackberry does not exist. However, various models of the Blackberry have sold in the past few years. This includes the Blacberry and Blacberry Thunder.
If you are looking to unlock your phone so you can use it on most GSM providers, then you would need a unique unlock code for that to enter on the phone.