Not surprisingly, the special “Let’s Rock” iPod and iTunes 8 announcement that Apple hosted for the media dominated the Apple-focused blogging world this week. Apple bragged about its music market dominance, introduced new iPods, iTunes 8 — including a hot new musical Genius feature — and even hinted at what to expect from the new iPhone 2.1 software update. But Mac bloggers didn’t stop there — rumors are now looking to October for a much-anticipated new line of MacBooks.