Hi Craig,
>- Winforms are won't get updated by Microsoft in the future. WPF is the way to go
>- The IDE in VS2010 has been rewritten in WPF (believe it or not, the IDE in prior versions was COM-based)
>- WPF is suitable of all kinds of applications, even data entry. In fact, you can make data entry even easier and better
>- WPF has a much steeper learning curve than WinForms
>- WPF tools are still in their infancy. VS2010 definately has the best tools yet, but there is still room for improvement

I haven't checked myself: is WPF on mobile devices ready for prime time ?

regards

thomas