I don't think they did that. They haven't abandoned their standard product line, in fact they just released the Bold which may be the best of that paradigm.
They released the Storm to cater to the 75% of Americans who don't want to be on AT&T for whatever reason. When the iPhone was released, everyone said "Apple is going to make it about the device, not the carrier" but the reality is they haven't. A lot of people haven't purchased one simply because they prefer another carrier.
Blackberry is giving them an alternative with the Storm. I don't know if it's a good one (maybe not) but it's probably the best, and will probably sell decently just for that.
They released the Storm to cater to the 75% of Americans who don't want to be on AT&T for whatever reason. When the iPhone was released, everyone said "Apple is going to make it about the device, not the carrier" but the reality is they haven't. A lot of people haven't purchased one simply because they prefer another carrier.
Blackberry is giving them an alternative with the Storm. I don't know if it's a good one (maybe not) but it's probably the best, and will probably sell decently just for that.