Don’t mess with the Devilfish. Apart from being a former safe cracker, a mean poker player and a man with a sharp tongue (see Trashtalking moment No3), Dave Ulliot is also a decent businessman, which is probably why Devilfish Gaming has just doubled its sales in the six months to December 31, 2009 to £476,248 – up from £237,599 a year earlier. Read more.