For those interested in learning more about Boise State University's EDTECH graduate program, take a look at the video below. I'm only two classes into my degree, so I haven't had a chance to take a class that makes use of Second Life. It certainly looks like it could have promise.
I think good educators draw on a variety of resources and strategies to get students engaged in the curriculum. Could the virtual world of Second Life be one of these resources I use? Sure. Does this mean that the concrete here-and-now goes out the window? Of course not.
As an online student, most of my learning occurs through a pixilated environment. As a high school classroom teacher, the majority of my interactions with students are face-to-face; this despite the fact that they spend one-third of their day interacting with screens. While there is definitely a benefit to incorporating virtual worlds and online interaction into my teaching, it's worth noting that some of the most meaningful classes I've had have occurred in the format of an old-fashioned Socratic seminar.