I didn't like the treo650 as much as I like the Moto E815. The nice thing about the E815, is that you can bluetooth sync it with your mac for address book/telephones. You can also 'hack' the e815 easily to allow bluetooth transfer of music/video/pictures from cell to computer. I did it at the Apple store when I demo'd the macbook to my friend.
I think he was utterly impressed.
I'd like to get another E815 as a back up.
All I ever really needed to know, I learned from watching Star Trek.