GedLink Project

Dear Listers,

I got a mail directly from Olivier Hergault who asked for my participation in his GedLink Project.
Does anyone of you have any experience with this project and is it advisible or does it help us in finding unknown ancestors?
He said that GedLink is "basically" free of charge, that would mean to me, that a short time after joining this project they will take money. Am I right that this is only a new form of collecting money from us or is it really helpfull?

I would be happy if someone could give me an advice
Peter Roggelin