Quick reply...

Mnemosyne _is_ open-source. Right? Current version is 2.3.1. Maemo version is 2.0.0.

If somebody enjoys python-packaging, he could package 2.3.1 for Maemo. Both Fremantle and Diablo, if possible.

Not sure what problems would be connected with that. But they were solved before, so they should be solvable now.

Ideally, it should be possible to transfer Maintaining of the package in Maemo repository to somebody else. I'm not sure whether you need agreement of Max Usachev for that, or just whoever-is-responsible-for-Maemo-repositories.

Best wishes.
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Per aspera ad astra...