Yep... Arrows are now part of windsurfing history.
They were owned by Boards and More... The company that owns F2, Fanatic, Mistral, North Sails...
I forget the history before this, but I think Boards and More acquired Arrows in 2002 or 2003, and Arrows was wound up at the start of our 2006 season.
I think they had an R&D loft in WA, perhaps someone who was in WA then knows what happened