Check out Sweetwater's complete Winter NAMM 2014 Show Report right here: http://www.sweetwater.com/insync/show/winter-namm-2014/
Samson's Graphite MD13 packs assignable knobs, performance pads, transport controls, and even a crossfader into one extremely portable unit. The velocity-sensitive pads also support aftertouch, perfect for playing synthesizers in addition to drums and samples. A free software editor is available via download to create and save your customized settings.