I'm a big fan of ISP's Theta pedal & the manufacturer has extended its technology into this- the Theta Pro DSP, a foot controller. Not just a standard programmable foot controller but it includes the Theta features in it, meaning- you can add in pre-amp & drive/distortion voicings in there. If that's not enough for you, the manufacturer has included some effects as well, not forgetting a speaker emulation should you need this for recording. It's gonna be an interesting 2015... :-)
