i would likely see movable hands / fingers in future versions

Same here. But I think this is a planned feature. Girls react to the keyword "handjob" by saying "put it in my hand" but nothing happen for now

Yes, it is on the "todo" list. But because we do everything with physics it is not only as simple as adding some finger joints.

Yes, human hand has very complex mechanics and making IA use it looks very hard with physic
good luck

great

@aoris good point / idea