Edit: For those of you who find my comment off topic - did you even read the article or just the summary? Here are some relevant quotes:
"Twitter had criticized Google’s new social search feature, which it calls Search plus Your World, on Tuesday. As we’ve seen time and time again, news breaks first on Twitter, its statement said. We’re concerned that as a result of Google’s changes, finding this information will be much harder for everyone."
"Sullivan told Schmidt he thought one feature of Search plus Your World, which recommends relevant people to follow on Google+ but not other networks, is the equivalent of saying ‘hey, you can only find information about finance on Google finance. You cannot find information about finance anywhere else."
Clearly people are upset about Google trying to block out competitor's results. I believe my comment is completely ON topic.
Edit 2: Wow, I had no idea how many Google apologists were out there. I had high hopes that the Hacker News community might actually be objective and not just fawn all over Google. Christ was I mistaken.