The article assumes that all digital immigrants are teachers and that digital natives are our students. Granted, digital natives are the students - but there is a growing population of digital natives as <b> teachers</b>! If a digital native is anyone typically born after 1980, and one starts teaching typically at age 22, we have five years of digital native teachers.
The trick is that many of the suggestions that the article has are great - but building a game to show, for example, the excitingness (is that even a word?) of systems of equations is not an easy task! I have a student who is building a Flash game for his culminating project - it takes time, money, and developers. We have some resources, but they are typically not great for education. (As much fun as "Oregon Trail" was, I'm not sure it was anything other than a time waster - or a "how to kill your settlers the quickest" program...) I think that there are teachers who would LOVE to use this, but there isn't a great wealth of video games that aren't hokey out there...