Since the beginning of recorded audio, there has been books written to work in tandem with a record, cassette, CD, or digital file so that children can be read to.
This concept helmet is by Jonathan Robson, and his helmet allows a child to hear a story by plugging a Lego Brick USB stick in back on a USB slot in the back. On the Lego bricks/USB sticks are stories that go along with Lego comic books, and I believe that the child is supposed to read the comic, while the helmet electronic gadgets provide the sounds.
I’m not certain how the technology of that would work, nor what would power this (presumably batteries or some USB charging of some type). I think it is interesting that it is shaped like a helmet from a Space Lego minifig, and made so the kid is in a private world of narration.
I believe that the comic books would be available by subscription via the mail, and the info on the Lego bricks will probably be downloaded via some iTunes service of some type. However, it is still in its concept stage, but we’ll see if it ever comes to pass at the Lego catalog.