Attending the CTIA WirelessI and Entertainment conference in San Francisco and came across some really advanced new Windows Mobile phones. From my point of view the most feature rich is the HTC Kaiser (which is branded HTC Tilt by AT&T because of the tilt keyboard). It's the first Windows Mobile phone I have seen with a 3Mp camera in it (I currently use a SE K800i and find the 3Mp camera very useful).
Clearly can't purchase it from AT&T since it would be locked and available only on plans but it's available here
http://www.egadgetdepot.com/catalog/product_info.php?products_id=106
I wonder if Vodafone will ever bring the phone in. I find their selection of smartphones for corporate use somewhat limiting if you don't want to use Blackberry
Larry