In reply to stroppygob: You'll probably have to keep it in the Apple Ecosystem and spend a fortune on a skydrive, but can't see why not. It'll also have to be linked to your copy of iTunes. If you'd have had an Android tablet it'd make the whole process so much easier! If you've set up iCould your iPad should have an ability to back itself up.
You could use Tumblr as a back up service. I believe they are offering 1TB storage for free. If you have internet access, just upload all your shots to this, then when you get home download them all again. They also promice not to reduce the quality of your shots.