I came across this video via the excellent David Noble podcast at Booruch. This teacher Tim Ryland uses the game Myst to promote literacy in his class, In an age where they say literacy has dropped amongst average children this look like really good use of games and ICT in the classroom. The game helps provides the children with a visual immersive environment that provides a platform they can write about .Some of the sample videos look really impressive with the kids looking really into it ,You can find his blog over here