I got some messages saying that some of my proposals are too much alike the 360 XBox. In my first proposal it could be and I though it was the intention of EG but then I realized it wasn't so I decided to remove it. However, I like the use of the x that I redrew in the following proposals. I consider that it's exactly the same the use of the x as the use of a controller that has also got a copyright for its design. Although, I believe the use of this elements would be incorrect in case it was used in a direct competitor for 360 XBox, it's not the case because it identifies a group of users of this product. I've seen a lot of fan groups of Star Wars or Star Treck that use the same font that the original logos, for example.
I hope I didn't bored you