I've been wanting one of these for some time but didn't want to pay shipping etc from the UK. Thanks to everyone for posting the USA sources for these! I plan to order one soon.

Something that is sort of similar, but not as elegant, is the Zip Stove: http://www.zzstove.com/

Not trying compare the two- just bringing it up in case someone here hasn't seen it before. Campmor and REI sell it.