From a wider view, I question the use of Infinity as a name for an iteration of a series. It's hard to see a path forward with such a naming structure, and raises expectations too high. Looking past this console, what do you name the next Xbox, Infinite Plus? Infinity Two?
It may be a trite topic right now, but it shows a bit of lack of forward thinking. It's why I always thought it was an unlikely retail name - possibly a good development name, not retail. It's best to keep the naming structure non-terminal. Stay away from words like infinite, superior, ultimate... it usually doesn't end very well.