Our enterprise users, to a T, hate the Storm. Many of my co-workers have it and can't wait to toss it.
For my money, it is even between Android-based platforms (a la the G1) or the iPhone based platforms. I am currently a "champion" on a project that has, for lack of a better term, turned our mobile strategy on it's ear. We have a pile of Windows Mobile, Symbian, iPhone, and Android based devices on hand, in addition to our stack of BlackBerry's.
Short answer... RIM is losing this war. Apple and Google are going to set the tone in the marketplace. The windows platform has been struggling for so long... I am not impressed with the device offerings or the OS.
My $0.02.
Cheers,
-Andrew
converted to an Android two weeks ago, hooked like a crack addict