Summary Judgment Denied in the G.M. Graffiti Lawsuit
Story (and copy of the decision) here. As mentioned here, G.M. had argued that there couldn't be infringement because the graffiti was part of an "architectural work" (namely, the parking garage it was painted on). The court rejected that argument, if anything treating it as a closer call than it actually is. Eriq Gardner calls it a "big win for graffiti artists."