Not a concrete schedule, no. I've been working 70 hours a week on my "real" job, so I've had very little time of late, but that ends in a few weeks, after which I'll have more time for Maemo Mapper.

I'd say the next release is out no later than a month or so from now. Critical bugs may prompt a more immediate bugfix release, but I don't know of any bugs that critical yet (maybe #50 - I haven't investigated it yet). Until then, cjackiewicz's patch works pretty well for POI.