The Nintendo DS (sometimes abbreviated NDS or DS) is a handheld game console and following the success of Brain Trainer they've released a new fusion of education/game in "English Training: Have Fun Improving Your Skills".
It's already on sale in some parts of the world and I've heard good things about it as a simple and fun way to improve certain English skills. You can test your writing skills and users are given various dictation exercises to transcribe into English using the stylus and touch-screen. After completing the task, the written phrase is analyzed and mistakes in spelling and grammar are then highlighted (hopefully better than Microsoft does). The Nintendo DS's voice-recognition function is also utilised when users are asked to read specific phrases aloud