Loved my 3a. Like all its predecessors, one day it just laid down and died. Fortunately I had backup, or it would have been a major disaster.
I bought an iPaq - which got me into deep trouble because of the "hole" in the diary function - it got me scheduled to give talks in two different countries at the same time because it didn't display a multi-day event when I was scrolling looking for a spare day.
I've since bought some excellent proprietary software for it, and am very happy indeed.
I've also got the "stylus holder doesn't hold the stylus any more" feature that all iPaqs seem to get.