Is this really the logo for the next Xbox? Probably not. The above screenshot was taken from Hugh Jackman's new robot fighting movie, Real Steel. Nothing coming from a robot fighting movie staring Hugh Jackman can be taken seriously.
You can see the Xbox 720 logo for yourself in the trailer for the movie, found below the jump. Look for it at about the 00:46 mark. Just be sure to close the window immediately after or else you're going to have to witness Jackman's ultra-embarrassing punching jump near the end of the trailer. Gross!
Is this really what Microsoft is going to call their next console? I doubt it. It's science fiction, after all.