I got proof! And a link before the image goes away. Full Truth, I saw this on a TheVerge forum post, but the post got taken down by him or a moderator.
Anyway, the Verge OP originally suggested that they can do: X8ox, or like I said Xbox Infinity. The latter is certainly too long to write out, so "X∞" (Alt 236) could work. Eh? Ehh?. ~ Alright.