Agreed. Also, unless these public-space eyesores are in the desert, tundra, or on open ocean, you have the problem of seasonal foliage changes. Not to mention

Agreed. Also, unless these public-space eyesores are in the desert, tundra, or on open ocean, you have the problem of seasonal foliage changes. Not to mention snow. Neat visual effect though, and there are certainly good applications for the tech -- but I'm going to say that "public eyesores" ain't one.