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. If you're recall, Pixel Qi's Mary Lou Jepson actually developed part of the 3Qi screen tech while at OLPC, so there was some mild confusion over who owned what -- but the two organizations have solved that problem by cross-licensing all future and current IP covering multi-mode screens. See, it's easy for two tech companies to get along... especially when one is actually a charity that's not at all concerned with profits. Super simple. So -- let's get working on that OLPC XO-3, shall we?