I have to agree with Encece about downgrading to PalmOS. I've been there, and I really don't want to go back. Further, the Treo is more of a PDA and I feel it should be compared with PPC PE devices.
The form factor and the keyboard of the Treo are very attractive. However when you compare it to the upcoming MPx I don't think it stands much of a chance.
"I have no special talents, I am only passionately curious" - Albert Einstein