For those DJ's following along at home, Serato Dj Pro has been in the works for quite a while. I'm personally excited for the the offline player mode. They call it Practice Mode. Very cool to try new mixes while you're on the go and not in front of your equipment. Especially helpful when you have an idea at random and you want to try it out. There's a host of other features. Free upgrade for registered users. Peep it all out here.