so without any notice ... or any additional information on the product until we go to unlock the new 2008 map . previous year you could unlock the map for 2 device -lrb- we have a pair of gpsmap 60cs unit -rrb- . as of 2008 , apparently you can only use the map unlock code with a single unit and must purchase a second unlock code for you second device . the Garmin website be a mess and any additional information about unlock code be miss from they website . some of they own link end in broken link that turn up no information . when I buy these unit , they be pretty much the only game in town as far as a good screen and a portable unit . now there be a ton of other option . if you be look to buy a new unit ... I would look elsewhere . Garmin be downright hostile to the enduser . maybe all of the gp company be ... but I intend on find out now and will not buy anything else from Garmin again . there have be complaint by other for year about how hard and complex the unlock code process be ... I agree . I have be able to get through it once a year . insult to injury , now it be go to cost I even more -lrb- on top of the mental anguish -rrb- if I want to use this update on both of my Garmin GPS 's . Buyer beware .