http://line6.com/tonecore/modules.html *If you like stompboxes with unlimited tonal options, check out the highly acclaimed ToneCore® effects now available as modules and ToneDock stompboxes. With ToneCore modules and docks, you can easily and inexpensively expand your effects arsenal at any time.* These look great. You put whatever effect you want into a base unit, and can swap them out and mix and match however you please. I think this could be the perfect thing for keeping the size of ones pedalboard down, with more situational effects being left at home or in a gig bag. Also this flexibility helps to not worry as much about committing to a permanent pedalboard.