I agree that the 20nm tapeout is great news for Knc, but they aren't out of the woods yet.

http://en.wikipedia.org/wiki/Tape-out

First tapeout is rarely the end of work for the design team. Most chips will go through a set of spins in which fixes are implemented after testing the first article. Many different factors can cause a spin, including:
- The taped-out design fails final checks at the foundry due to problems manufacturing the design itself.
- The design is successfully fabricated, but the first article fails functionality tests.

Their execution was nearly flawless with 28nm chips, so the next month will show if lightning can strike twice with their 20nm product.