I recently spent some time playing the Wisconsin Educational Communications Board’s game, Into the Book. The game, developed in conjunction with Wisconsin Public TV and others, is designed to increase reading comprehension among K-3 students. It is a well-done series of fun activities (even for me, and I’m way outside the K-3 range) crafted around eight skills of reading comprehension, such as inferring, using prior knowledge and synthesizing. Reading comprehension, while generally critical to making sense of Judy Blume books and Charlie and the Chocolate Factory, is also critical to school (and life) success in general. So, important….
The basic gameplay involves watching a video of a perky teacher explaining a concept to young students, and then practicing the skill through fun activities. One activity asks the student to read a letter from their pen pal, and hover over sentences and choose an inference. Another has students synthesize 
information by creating a poster online that can be printed out. The activities are fun and do a good job of integrating lots of media. Students collect badges to show their achievements.
I’m pretty impressed with the work the designers did to integrate good game design principles, theories of game design, and pedogogy. The theories are sound (and they have extensive materials for teachers on classroom uses and the standards Into the Book supports). 
But what I really think is interesting is that the tool reaches beyond the base of Bloom’s Taxonomy. Most overtly educational games are drill-based games, focused on the “Remembering” base of Bloom’s. Into the Book moves a little bit up the pyramid, while still being clearly tied to the educational process.
(An aside: there are a lot of games that play further up on Bloom’s pyramid, but they are generally not overtly educational, so their integration confounds all but the most innovative teachers. I think teachers of all types can “get” Into the Book.)
I think the game is fun and creative, and kudos to Wisconsin for venturing in. Two minor quibbles: the music is fairly unbearable for adults. (And also not chosen for adults.) More importantly, I know some frickin’ brilliant kids (I’m related to some of them), but I still don’t see many kindergartners spending so much time reading and writing.
Definitely worth checking out. I support that kids should learn to think.