Interesting - although personally, having backpacked in a lot of places and taken a snow peak stove with me semi-frequently - I've never had too much trouble finding lindal valve canisters.. i.e. if I can find the silly french campingaz ones I can find "normal" ones... or nothing at all..

I have of course, seen people with a campingaz stove trying to use a lindal valve canister - unsuccessfully... A belgian couple starting west coast trail as I was finishing one year.. we had a bit of a giggle and then loaned them a snow peak - they were nice and mailed it back to us