The X Prize Foundation is also working with the Bill & Melinda Gates Foundation to develop a prize for a better tuberculosis diagnostic tool. Other potential prize ideas include: preserving biodiversity, mapping the oceans, developing clean aviation fuels, energy storage, sustainable housing and carbon sequestration. The X Prize Cup is the result of a partnership between the X Prize Foundation and the State of New Mexico that began in 2004 with plans to build the world's first true rocket festival. __