I think it is not so common: a Garmin iQue 3600 with build-in GPS and HighRes+ Display and Palm OS 5.2.1r6 : r/Palm
TRAMsoft - GARMIN iQue 3600 (english)
Amazon.com: Garmin iQue 3600 GPS Auto Bundle : Electronics
International AC Home Wall Charger suitable for the Garmin iQue 3600 - 10W Charge supports wall outlets and voltages worldwide - Uses Gomadic Brand Ti - Walmart.com
Unique Gomadic 4-Port Intelligent Compact AC Home Wall Charger suitable for the Garmin iQue 3600 -
1600mAh High Capacity Battery with tools for Garmin iQue 3600 - Walmart.com
iQue® 3600a | Garmin
Garmin iQue 3600 Handheld PDA/GPS unit at Crutchfield
Amazon.com: Garmin iQue 3600 GPS Auto Bundle : Electronics