Not sure how I feel about this.
Eureka's science may be horribly fanciful and absurd, but at least they always pretend there's a scientific basis for everything.
Warehouse 13 tends to be a bit more mystical, though it skirts around claiming an actual supernatural origin for anything.
Oh, well. If I can live with Iron Man and Thor existing in the same universe, or Batman and Zatanna, I guess I can live with this, even if it is a bit of a retcon. Heck, it wouldn't be the first retcon in
Eureka history.
Just so long as they leave
Stargate out of it.