I have seen it and was impressed. I like the idea of two way prehistoric Atlantic travel and can never see why the Atlantic has been regarded as a barrier. Today people cross it in row boats and canoes. The real evidence is being uncovered and there are going to be a lot of entrenched views that will have to be dumped. That is if the sites are not covered in concrete first.
There is an interesting article from our American friend, Aluta on the Portal. See http://www.megalithic.co.uk/categories.php?op=newindex&catid=14