Sony said they were not going to reveal anything about the ps4 before microsoft did. This could have been a plan to make microsoft reveal their new console earlier than they wanted, or a way to make microsoft comfortable with waiting and giving sony a chance to sneak in there and not be last again like last gen
Yah I guess you could say trolling if you wanna ride a fad but honestly this is common advertising practise. Competitors psyche each other out all the time gotta keep each other guessing. Microsoft was a little busy this past year focusing on Windows 8 and their tablet thing, I'm not surprised they have been quiet. Announcing first ins't that big of a deal, it's all about releasing first. I'm assuming both MS and Sony will release their consoles mere months apart, like 2 tops. I wouldn't be surprised if both consoles were released in the same month.