Screws in a rucksack? No no no my boy, they are for show... preferably still in their dinky holders!
You put your axe in the rucksack so you can't get to it when you slip
Somehow, I always end up with two left handed zips! And I dread to think what the condensation would be like using one of these in a 2 man bothy!
For me, this would just be too much hassle when camping/mountaineering and too much of a compromise. In a kitchen (where I bet most of them will end up, along with all the presso's and handpresso's), I think there are better ways to spend your money, on something that is less portable, but more stable/practical. That said, with the current gaggia issue, I'm not sure what the lower end of the market actually is these days.
What would be interesting is to see how it works with poorly ground coffee, as let's face it, at this end of the market, not many buyers are going to have a decent burr grinder. Or even test it with something like a decent Zass, Porlex or Kyocera to see how well it works with a hand grinder
Having thought about this some more, the obvious market seems to be boats and motorhomes/campervans, where heating water and carrying grinders isn't going to be an issue. That and visiting folks. But when I visit people they always want me to make them coffee anyway
I'm waiting for the rest of the HB review to see what the reviewer reckons the market is, along with any comments on the cannisters.
[edit] As for a climbers thread, I don't know if there are any others around here... just look at the size of Cakey for an example of the lack of physical exercise around here! Seeing as you're in London, if you've ever hung out at the castle or the westway, you're bound to have seen me hangdogging my way up