more monome models!

monome just announced they are going to produce multiple models of their button pads based on the 100h platform. There will be a 64-button model that is smaller than the 40h, a 128-button wide version, and the already-planned 256-button unit (100h). Also, they are renaming the models to "the 256", "the 128", "the 64". I prefer the hex designations.