The IPA for the Finnish version is /mɑemo/ or /maemo/ (not sure which). It has three syllables: ma-e-mo and the stress is on the first syllable. Speculation: The Spanish pronounciation is similar but the stress is on the second syllable.

It's hard to explain the IPA o with words to someone who pronounces "mo", "moh" and "moe" similarly. The English to IPA tables have the o but it always seems to be with some other sound.