This excerpt taken from the ATVI 10-K filed Jun 14, 2007.
5.6.1 Limitations on Use of SCE Materials and SCE Intellectual Property Rights. This Agreement does not grant any right or license under, and Publisher shall not use, any SCE Confidential Information, the SCE Materials, or any of the SCE Intellectual Property Rights except as expressly authorized hereunder and in strict compliance with the terms and conditions of this Agreement. No other right or license is to be implied by or inferred from any provision of this Agreement or the conduct of the parties. In particular, Publisher shall not use the Executable Software, SCE Materials or SCE Confidential Information (or any portion of any of the foregoing) in connection with the development of any software for any emulator or other computer hardware or software system. In no event shall Publisher patent any tools, methods, or applications, created, developed or derived from SCE Materials. Publisher shall not make available to any third party any tools developed or derived from the study of the Development Tools without the SCE Companys express written permission. Use of such tools shall be strictly limited to the creation or testing of Licensed Products and any other use, direct or indirect, of such tools is strictly prohibited. Moreover, Publisher shall bear all risks arising from incompatibility of its Licensed Product and the System resulting from use of Publisher created tools. The burden of proof under this Section shall be on Publisher, and the SCE Company reserves the right to require Publisher to furnish evidence satisfactory to the SCE Company that Publisher has complied with this Section.