Microsoft pushed back next Xbox reveal because it's not afraid of PS4?

[Imaginedvl]

HokageTenshi said:

since its too late for them to change their RAM to GDDR5, they might preparing to make a shock news to announce the NextXbox will comes with 16GB RAM will this become more better than PS4 8GB GDDR5...??

Why it is too late for Microsoft? Sony did it at the last minute...

And even if you are one of those who believe Sony kept it secret; then Microsoft could do the same.