it as an experimental "third pillar" alongside the Game Boy Advance and GameCube rather than a replacement for either. Few technical details were initially disclosed, other than that it would feature two 3-inch TFT LCD displays, dual processors, and up to 128 MB of memory.

In March 2004, a leaked document revealed additional technical specifications, including that one of the screens would be touch sensitive, and identified the internal development name "Nitro".