I don't know about Sweden but, my normal sources in the USA have 10180 batteries for ~$3 each. With 50~70mah, I tend to think these are a one-trick pony. The AAA size 10440 to me is a lot more attractive. Sure it is a bit longer so, maybe not as impressive to non-flashaholics and may be a bit more troublesome on a keychain but, I still find the AAA size about as small as I want to go.
It is already approaching end of the year period, new projects would probably have to take a back seat while manufacturers are busy with holiday sales shipments.