As stated in a earlier post we will be sending carts out for engineering our next 3 cases which will include a SNES/SFC case, N64 case, and a GB/GBC/GBA case. For those wondering how manuals will fit in the GB/GBC/GBA case here are some examples:
(click to enlarge)
With no pocket:

With pocket on bottom:

With pocket on side:

That case is just a sample case that the company sent us. Our would be black. Its not a prototype. Once we have drawings we will show what case will look like and once we receive prototypes we will post those as well.
The pockets used in these photos are not the actual pockets that will be available, these were cut down pockets that we originally used with the NES cases. However as you can see all typical GB manuals should fit in perfectly. No pressure points that could cause creasing.
We expect price for the SNES/SFC and N64 to be similar to the NES cases, but we are waiting on rough quote on GB cases. Due to size difference we are hoping the cost is quite a bit lower. Once we have rough idea we will post here.