As a 'can't cook, dont want to cook' kind of person I read all of the entries and have found the subject very interesting, but for me have found it too complicated to get my head around. What it has done however, is to confirm that I will stay a 'can't cook, don't want to cook' type of hiker.
When I'm hiking I just drink water. Tea, coffee and hot food are bought en route. I'll just continue with my wraps, spreading cheese, nuts and chocky bars and the odd tin of cold Ambrosia custard or rice to sustain me during the day.
The no flame flask look interesting.