Shigeru Miyamoto has openly stated that Nintendo is actively working on new ideas for its next wave of hardware systems.Though it is common for a platform holder to begin work on next-generation hardware soon after the release of the current system, it is rare that a company executive will openly discuss those plans.But Miyamoto told the Associated Press that Nintendo is in the formative stage of designing new hardware, and suggested that preliminary work is underway on more than one system.