Deploying LED technologies into permanent installs on building facades started to get seriously examined about 5 years ago. Even as recently as that, the manufacturing and integration costs were astronomical. NOW, they’ve slipped to merely wicked expensive (if you’ve got a skyscraper in mind), but I’m starting to see this application flourish all over the place. Here’s a video of a proof of concept gig we did to examine low res video on building facades in Vegas in 2007… The best moment in this test was when the fire department arrived to investigate the “flames” ! This trend took off, especially in China and places like Dubai shortly thereafter. The products we tested here all still exist in some format or another.