I understand your point. But I think while the current phone manufacturers are busy worrying about cost and speed for businesses, Apple will (and has already) differentiate(d) itself by offering the best user experience along with the features business users want (referring to iPhone 2.0 software). While it may not takeover that market - even a small share can result in success for Apple since it's products are so desirable and can sustain a higher price.
Maybe it's just me, but I haven't read a single review of competitive touchscreen devices that come close to offering what the iPhone offers in terms of user experience. Functionality - maybe - but not user experience. And if I can define your mention of the word "cool" to mean "desirable and fun to use", then I think
that will also propel the iPhone to success in the business arena.
Lastly, think about this incredible framework called the
App Store. It will empower businesses to create custom applications for their employees and clients. No other phone manufacturer has this kind of "ecosystem" that has created incredible opportunity and flexibility.
The potential it offers is staggering to think about, not "limited".
Here is yet another business convert:
Why I'm Getting Rid of My Blackberry for an iPhone