The thing is: bothof them have catogirizaiton, BUT cannot sync your categories from Outlook, which makes them highly incomplete IMO. Who on earth wants to sit there on their phone and enter categoroes for 50o or even 50 items. Especially on a phone without a true keybaord. It should be pulled from the PC.
I cannot believe that they and Nokia have neglected such a basic thing. Pocket Informant on WM5/WM2003 is far ahead of them.