Feature Injection has been my favorite will-o'-the-wisp over the past month or so, starting from the point where I discovered that the "founding document" for the concept is a set of photos of Chris Matts's moleskine notebook which he wrote on a plane and uploaded to picasa in 2009. I'm still digesting the ideas, which I was completely unable to read in photo form, but was further able to track down as a set of comics on Agile Journal as follows:When Chris says to allow readers to "pull" information, rather than "pushing" it on them, he's serious about it! I hope it doesn't mess with the system too much to have links to all five posted in one place.
Here's another helpful link which includes the five comics plus an introductory essay: http://www.lulu.com/items/volume_66/7362000/7362946/3/print/lulu_word_comic_vFinal.pdf
I've also blogged again on this topic with more info: http://pagilista.blogspot.com/2011/11/bdd-feature-injection-and-fallacies-of.html