Motorola A840 questions

I have a few questions about the A840.

Since it's a CDMA/GSM phone that bell offers, does it use a SIM card? If there is a SIM card can you put in a SIM card from another carrier (like Rogers) and use another account on the phone?

How does the service work when there are both CDMA and GSM signals present in an area? Does it automatically switch to a particular band when the other is not available? For example, if Bell service cannot be received in one area of Canada, will it switch to the GSM band provided by Rogers/Fido?

How does the billing work with Bell Mobility? When it uses the GSM band is it considered long distance?

Finally, is it a good phone? :P

Lots of questions here. I'm really curious about how this phone works on the Bell Network and other networks.