I'm tired of hearing the makers of SAM make unfounded promises that their board will run OS4 "soon". Their track record so far is no better than that of AKC. Either they can put up, or shut up.
And where have they made such promises? Yes, the plan was originally to have OS4 running on it, but things changed with Amiga INC terminating Hyperions license, filing a lawsuit and so on.. The only one you can blame for no OS4 are Hyperion and Amiga INC. The people who developed this board has nothing to do with OS4 development, so how can you expect them to port OS4?