Good article about the Treo.
Right now, I am really missing my 600. I kinda of like the 650, but it doesn't hold as much data as the 600 and I've had to delete several programs I liked.
One thing I do like about the 650, is the side button, I have it set up to do EzManager (my diabetes software).
When the 600 finally died, I thought about going back to two devices, but the unlimited internet is just too good. I can't do with out. It keeps me sane at dog shows. It will probably keep me sane in the new classroom.