This is a Palm m100 and is less than 1 year old. Only used 2X in the field and previous owner only used for one month.
Comes with HotSync cable, all software, package of screensavers, stylus, 1 pen, softside case, null modem adapter and gender changer (I used it to connect to my #497 Autostar), and a homemade red screen/magnifier for use in the field (and to save Palm batteries when backlit).
Runs on 2 AAA batteries (not included).
Control your telescope or use in the field as a planetarium.
Asking $40, including s/h.
Will take m.o., cashier's check or Pay Pal+3%.