After losing a stylus (well, actually, I know exactly where it is: under the slide track for the passenger seat in my wife's truck. Short of taking the seat out, it's lost.), I went to Frye's and found a combo stylus/black ball point pen which has been great. It's one of those twist to select what you want. The only flaw was the blue enamel came off, but the underlying brass looks ok, too.

So, my remaining stylus stays in the holder on the N800, for looks mostly.