I think zoom is making a bass version of that pedal. it could be a while until it's released. they've mentioned it on the namm website. http://www.premierguitar.com/Magazin....aspx?Page=34&
If you happen to use the zoom ms100bt for effects like distortions and modulations and you don't to obliterate any lows, a blender pedal like the boss ls-2 line selector would help you out on that.
Schecter owners club #124, Ibanez club #362, Soundgear club #99, Peavey import club #65, Gallien-krueger club #521, Zoom owners club #3, 5-string bass club #341