putting it on github might [will] get you more bug reports and small patches, but you're looking for a release manager and general owner. you want someone who

putting it on github might [will] get you more bug reports and small patches, but you're looking for a release manager and general owner. you want someone who cares. if they care, then where it is doesn't make much difference. so i don't think it's going to be a big help right now. it would make more sense for the new owner (if/when you find one) to do it... your time would be better spent trying to find that special someone. do you have any way to contact existing users? emails? could you put a pop-up in the next release?