Our 7-Port USB Hub has the same PCB size than Raspberry Pi, so it can be easily mounted over or under the Pi. If you have a case for Raspberry Pi that can have its top cover removed, you can put the hub and the Pi together into the case:
This project includes some children projects, as we are actually designing different types of cases. The first sub-project that could be demonstrated is this one, which opens its design and is free for download and print with 3D printer.
There are other sibling projects on going and you will see the news very soon.