The DS features a touch-panel display, voice recognition, and wireless connectivity. The last function will allow many users to play at once. Gameboy Micro--which is basically Game Boy Advance SP in a better looking body--will be released in Japan on September 13, the all-important US market a week later on the 19th, and in Europe on November 4th. (The new Sony PS 3 will be released next spring.)
Nintendo is hoping to sell 3.5 million units of the DS.
Amazon Store Japan