Mobissimo

Interesting technology that could prove indispensable for people (e.g. aid workers) traveling in parts of the world where creature comforts are hard to come by. While getting the propane canisters to your destination might be a problem, airlines prohibit them on checked baggage. But if you could figure out how to get them to your destination and just pick them up there, seems like the Heatstick could come in really useful. From GetOutdoors:

• The Heatstick uses a flameless exothermal process for heating the water
• The complete system includes
• Fuelstick - essentially a customized propane canister which provides the fuel to power the Heatstick. Seem to cost about $8 a unit, but you have to buy 10. The extreme Fuelstick (there are 2 other types) weighs 93 g, will heat 6-9 liters of water, and will work in temperatures ranging from -30C - 0C
• Heatstick - this is the actual technology that heats the water, lets call it a "stove" though it doesn't use a flame to heat the water, rather works on an exothermal process. Probably like those bhutane hand warmers. It's not cheap, looks like it costs about $400 and weighs 380 grams for the 1L version. Not the lightest for sure.
• Water bottle - the heatstick screws into the bottle and is submerged in the water. Not sure if other generic bottles like Nalgenes work, seems like it should have been designed to work with Nalgenes and other wide-mouth water bottles.
• Batteries - used to "ignite" the full source and start the exothermal process