First off , im glad i do not spend -rrb- $ 500 on a gp , i spend only $ 300 , and this little thing bring I everywhere . I have doubt about its capability , but i be amaze at its accuracy . the 128 meg card that come with the drive be enough to fit 5-6 state which be plenty for I . the only thing that bother I be the fact that enter a new address take patience , which you need anyway since u shouldnt be a aggressive driver . also , you should put the gp on the bottom of you windsheid in order to get faster satalite receiption , i have it near the cup holder , rear view mirror and it lose signal a couple of time , but once i put it in the front of the car near the wiper , it perform brilliantly ! I would recommend this device to anyone want a gp device and do not know electronics very well . the screen be small but why would you want to look at the screen anyway when it tell you where u should be go ! to I the screen size be a useless concern since you should be look at the road anyway .