> After creating the first prototype I realized a number of things. While it was cool there wasn’t enough utility to justify creating another one. The only way I could have figured that out is by making and using this prototype for several months.<p>I did something similar with LEDs [not a cube, just a board with lights] to alert on various things before just having the Pi power an old wall mounted LCD I wasn't using anymore + a dashboard.<p>It is one of those ideas that is awesome in theory but its really hard to justify the time/effort beyond "FUN!"