I really like this move by the Devils, even though they don't have a ton of prospects, especially after dealing for Kovalchuk, but Arnott is a great pick up by a team that is very close. I think Arnott is exactly the type of guy that New Jersey was missing in their loss to Philadelphia. They could even use another guy like him. Philly was so much tougher and more rugged.
Another priority this summer for New Jersey is to re-sign David Clarkson. In my opinion Kovalchuk is gone from New Jersey.