Bushwalk Australia

Thought this advertorial from last Monday's Examiner may cause some amusement, particularly for the ultra-lightweight brigade:
Anyone interested in a solar distiller which produces a litre or more of fresh hot water per hour from sea water and will also cook your dinner?
Only 5Kg in a briefcase sized package

Crikey, mains power must be expensive where he lives. It'd take me 25 years to make back my dough on a home solar system where I am.

At 5kg it's be ok for sea kayakers (the distiller).

At 5kg definitely just a bit on the heavy side . What would you have to leave behind to take one of those things? Oddly they seem to be targetting bushwalkers as a specific market. Sounds interesting though.
A bit more info here, suggesting that bushwalkers can carry them because they are "very light":

http://www.ultragreensun.com.au/waterpurifier.htm

Anyway looks like free Devonshire tea on offer tomorrow if anyone from Launnie area feels like checking it out further .