This is a serious question, not a product war. I am not a Blackberry (BB) user so I really don't know. For enterprise customers with Exchange, why would you pick a BB as your corporate standard over Exchange? In addition for enterprise customers, why...

OK, I have to admit my least favorite thing to do ever is upgrade to a new OS. Especially given the guidance of never do an upgrade instead for you to do a clean install. Getting my machine just the way I want it which often takes months. Most people...