Back in 2008, a nifty little box of tricks elbowed its way onto the market -- the Tonium Pacemaker. A gadget about the size of an OG PSP, with a complete DJ set-up hidden inside. It was a brave idea, and one that was fondly received. A few years down the line, mixed with a sprinkling of business politics, and sadly the Pacemaker's time on stage would come to an end. Like all good performances though, the show wasn't completely over. In true musical fashion its back for an encore, reinvented and more importantly -- right now at least -- in our hands. We spent sometime with the reincarnated Pacemaker DJ app, to see what life is like after hardware.