DukeNukemForever: I will start downloading and managing my backup and the shelf if everything is done. I hope at some point that maybe gog wll release an updated shelf very soon, at least will give some hints if there is something in the pipe that makes sorting and grouping easier.
Right now I occur two problems - fallout 1 seems to be gone again and at a diffrent place there ist a free spot. Also I can't rearrange the shelf (wanted to put at least Fear 2 beside Fear 1. As it seems we are right now still in an interims phase it would be a little bit early to make a conclusion. Personally I like the idea to have for every game it's own cover, but it really depends on how well the unbundling will go and how the shelf functionality will be improved.
Edit: And fallout 1 is back ;-) But still no rearrangement possible, but that's not really a problem for me right now.
I had this problem once that I could not rearrange the games. Switching to list view and than back to shelf view solved the problem. No clue if it will help in your case but you could try it.