I can say this much. I checked one out last night and I like the keys better than a Treo. It's much bigger and has a good feel to them. That was my main concern. I need to potentially type 300+word emails on the road and so a good keys were #1 priority for me.

Next thing I am looking for is the responsiveness of the OS. The E62 I tried had a dead battery so I couldn't play around with the OS itself.