I'm really surprised there's no photos of the build process. It's hard to tell if this is actually what is being described, or just a blog post around a photo of a framed image.
Build photos would have been really cool. Also, some detail on the software would be nice. I'm assuming it's running on OSX, but I still have lots of questions (what language, how can you change the picture, how does he manage it remotely, etc).
If I get around to pulling together build photos (which by the way aren't that exciting), I'll post them here. For now, just imagine a big hole in my wall (I had to reframe it), a photodiode sticking out of a hole on the right side of the picture frame, and an iMac.
The software is just a simple Objective-C / Cocoa app running on Mac OS X. I use a Kensington presenter clicker to advance the images to change them remotely. I drop new images into a Google Drive folder from another Mac, which the picture frame automatically picks up and puts into the image rotation. And if I want to make major changes, I just use a wireless keyboard and mouse to work on the frame like I would a normal iMac. It is very unsophisticated.
