Microsoft's Xbox Twitter account has come under a lot of fire for plagiarizing a concept art without crediting the original author. The image in question has been used in some promotional material.
Concept art RSS
A fan-made concept for the Surface laptop looks absolutely stunning and makes you wish Microsoft would hire its designer already. As with most concepts, though, it does put form over function.
Concept art from a story-driven fantasy cooperative game that Valve may have considered developing has emerged. The newly released artwork includes images of characters, creatures, and more.