I don't quite understand the costs of using a Blackberry. I understand all the technical stuff of how it gets your email and pushes it to your device etc..
But what I don't understand is can I use an unregistered blackberry with a Vodafone data plan?
Or do i have to pay either pay Vodafone/Blackberry extra to use the full blackberry features?
Each Blackberry device has a pin and an IMEI number which you must register on the blackberry website, so if I buy an unregistered blackberry can I register it with myself and use the blackberry features?