Our man Nicholas Negroponte was certainly excited about pushing the state of the art forward with future versions of the OLPC when we hosted him on The Engadget Show earlier this month, and now he's got one more tool to help make that happen: the OLPC Foundation and Pixel Qi just signed a permanent and free cross-license on a slew of next-generation screen technology patents, including Pixel Qi's sweet dual-mode displays.
