http://arstechnica.com/apple/news/2008/01/macworld-ars-macbo...
Given how Apple is so notably obsessed with security around new products, it certainly seems plausible that if they wanted to hide it, they would figure out how and make it happen. So I wonder what the probability is of a controlled leak.
And this info would be the perfect thing to leak, because it doesn't tip their hand to show anything we don't already know. It's already known that a new iPad will be announced on Wednesday. 2x resolution LCD panels have surfaced in China, so we already know that. And of course Apple is working on iOS 6, because they make iOS.