I wouldn't call the Storm a failed device, more so the the first Tour and Flip phone version.
The larger screen on the Storm makes it really nice, and later OS version improve the touch screen capabilities.
However whether or not it gets 6.0 is another story.
8830 -> 8330 -> 9550 -> 9650
Just think about how far BlackBerries have come from then till now... And what else is coming.
Follow me on Twitter