In reply to The Lemming:
do you already have a tablet or half decent smartphone?
some (most) android phones feature something called USB on the go which with a cheap cable from amazon (or similar) and an SD card reader would allow you to copy the files (pictures) to either on board storage or the devices built in card slot, you then remove the SD card reader for your cameras card and plug in a USB flash drive and back them up to that.
(if that doesn't make sense, i'll try and explain again more clearly)