This isn't exactly what you are looking for , but still pretty cool.
I saw a demo once by Kiva Systems. These robots basically work by bringing the shelves to the box packer. CVS decided to expand a warehouse they had with these robots in it and the robots did all the moving and setting up in the new added on space!
Also, the sytem is completely dynamic, as in each shelve goes where it is most needed and doesn't have a home space.