I've got one of these on it's way from the UK and wondered if any of you have used one? http://www.jcbphone.co.uk/handsets/jcb-toughphone-sitemaster2

I won it as a prize and wouldn't have normally thought of buying a phone like this. However, after reading the specs I'm now really keen to put it through its paces over summer, when I am out in the wops camping. I'm not sure I really want to drive over it or flush it down the toilet to test if the claims are true (very tempting though!) but since I will be without power for long periods of time I will probably make good use of charging it by winding it up. 

Has anyone seen these in action/used one?