It seems like RIM is going to offer a service for Blackberry users that can rival against Verizon’s Vcast.  The beta had a lot of speed, quality and content problems but now things have changed.  RIM is ready to launch this for Canadian Blackberry users using Rogers, Bell and Telus networks.  Sona promises faster download times, higher quality and more content.  At least their launch name is catchy (bbTV), but only time will tell how it does in the market.

More on Blackberryforums.com