The team a Magic Lantern has done wonders for the filmmakers industry (and arguably for Canon as well). They made RAW shooting on DSLRs available, implemented a scripting language, and even improved the exposure and dynamic range of the Canon EOS line.
But announcing that the ML team managed to run a 3.19 Linux Kernel on several EOS cameras has the potential to make a huge difference in how apps are developed for cameras. Apps for cameras? yes. This may become a reality.