With the new Ixer / Bevins paper now out, and all sorts of other things happening this week, time to revisit this issue? In my view the Ixer / Bevins findings are simply confirmation that the bluestones are glacial erratics from all over the place -- but the senior archaeologists whom we so dearly love will no doubt already be adjusting to the fact that there wasn't a single bluestone quarry. Lots of bluestone quarries, they will say. And they will be honing their arguments to the effect that the bluestones are tribute stones or petrified ancestors. Hmmm.....
For what it's worth, here's a contribution to this debate:
http://brian-mountainman.blogspot.com/2009/10/bluestones-tribute-stones-petrified.html