The District Court for the Northern District of California recently ruled in Jacobsen v. Katzer, No. 3:06-cv-01905 (N.D. Cal. Aug. 17, 2007), that the defendant’s alleged failure to adhere to the provisions of an open source license, by distributing copies of the licensed source code without the inclusion of the required the attribution notice, constituted a claim for breach of contract and not a claim for copyright infringement.