Can I up load other maps?
Can additional maps I.e. USA maps be uploaded onto this device?
Yes, but see my review. Only a 2Gb mem on this baby, so you will need to back it up, wipe the UK and Euro maps and then install the US map. When you come back home do a full restore on the unit form your original back up to Nav around the UK and Europe. You will of course have the US maps backed up so you can reinstall should you be returning to the good old USA