It's always interesting to me what clever engineering types can come up with just for the sheer pleasure of it. This is definitely something fun for people who want to personalize their wall decor. While it won't turn anyone into a Picasso, it's certainly worthwhile for entertainment purposes. It reminds me a bit of those digital picture frames, and like those I think it could make a cool Christmas gift (if it was on the market and affordable, of course!).
You know what would be fun? Hang a weight on a rachet (like a pendulum grandfather clock) to spin a motor/generator to provide the electrical energy for this circuit. Lose the AC mains line cord running up the wall.
Novel use of a LED array. Nice that Allied provided part numbers for the bits they do supply. But it would be useful if the supplier of the non-allied parts were also part of the article. Especially considering that the LED array is fundamental to the gadget.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies.
You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived.
So if you can't attend live, attend at your convenience.