Gnuite messaged me:
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Yes, it's available for OS2008, and it's the exact same version. proj is available in each of the Maemo Extras repositories from which maemo-mapper is available, so if you used a Maemo Extras repository to install Maemo Mapper, then it should be available already in your Application Manager. If not, then use this link to install proj for OS2008:

http://repository.maemo.org/extras/d...l/proj.install

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I did a fresh install - installed "proj" first, then MM and SHAZZZAM!!! Works a charm! Low-route VFR charts on my N810....and i've only had it 3 days!!