I just got back from Queretaro, MX. While there, I bought a Polaroid 4" portable GPS at the Sam's Club there. It cost me roughly $272.00 US. Let me just say it worked awesome! Has 3600 towns with complete street address' all over Mexico. Often times even the small "jardin" in very small towns was available. Touch screen and MP3 player with headphone jack and SD card reader as well. I have a GS and left it in the map window of my tank bag the whole way. Gives you actual speed and thousands of points of interest with phone numbers and address (and every PEMEX as far as I could tell). You tell it to take you from Qro to Laredo and no problemo. The touch screen came is super handy while riding and using the MP3 player. If you are really worried about getting lost and listen to music while you ride, get it !