Take a look at the Dell Axium.
It's Pocket PC 2002-based. And the cradle looks cool!
No, really. I have a Casio E-200 that I use for all kinds of stuff. My current client does a lot of development for handhelds and I use my Casio a lot as a test bed. Full of features.
So is the Dell. At about HALF the price!
If my E-200 ever goes belly-up (or gets stepped on), I'll go with the Dell as a replacement in a heartbeat.