Another of his hacks that i found quite notable was a man-in-the-middle attack on HDCP-secured connections to overlay video in any HDMI video stream and gave a nice talk about it.[1]
[1]http://hackaday.com/2012/01/21/overlaying-video-on-encrypted...
[1]http://hackaday.com/2012/01/21/overlaying-video-on-encrypted...
That makes it much harder to use for actual DRM stripping, and thus easier to argue that it doesn't qualify as a DMCA circumvention tool.