I (= Shlomi Fish) have not seriously worked on Freecell Solver for a long time.
I feel that it is already rather complete and feature-rich, and does not justify too much further work.
While there are still some things that could possibly be done, I've lost interest (at least temporarily) in performing more work on the software.
If someone shows he is interested on continuing the work on Freecell Solver instead, and that he is capable of making meaningful contributions, I'll gladly pass the baton to him or her.