The Penguins signed Jonathan D'Aversa to an entry-level contract. According to the linked article, D'Aversa will begin next season with Wilkes Barre.
D'Aversa is only 21, plays defense, and is a (say it with me) right-handed shot. He was in camp last year with Columbus, but didn't stick. He managed 13 goals last year in the OHL (with Sudbury), though he was one of the older guys on the team. He also had 18 points in 21 playoff games last year with Sudbury. He has decent size (6'2", 190 lbs), but not many PIM.
He'll be interesting to watch - he was undrafted, but he is right-handed.