I emailed the seller about transferring the files from the 2GB card to a 4GB card, and he said it can be done. The 4GB non-HC's are hard to find but I found one on line, the SDHC's won't work on my laptop or the GPS. I was surprised with another feature last night...the screen changes automatically when it gets dark outside. I tried watching a slide show on the picture viewer while navigating and it won't let you do it, so I guess watching a movie while riding won't work either...unless you turn off the navigator. Looks like I could hand it off to Terry if she gets bored and she could play games, watch of movie, or read a ebook...but that's not why we ride. I'll probably use it mostly to play music through the radio (wireless) and use the gps occasionally to find stuff like gas stations, motels, restaurants.
I use GPS on my boat all the time, but this auto/bike stuff is new to me as you can tell. Some of the best bike trips I've ever taken involved being lost at least part of the time. The depression of slowly running out of gas, and the high of finding a open station just in time.

The joy of being unconnected to world for hours and days at a time is the best part of the ride and now this !! I just packed it up and put it in the closet.
Doc