Two clarifications: - Opera never switched to Webkit. Opera had switched to Chromium, which initially used Webkit. So, it's no surprise that Opera adopted Blink

Two clarifications: - Opera never switched to Webkit. Opera had switched to Chromium, which initially used Webkit. So, it's no surprise that Opera adopted Blink. - Opera has publicly commented it was aware of Google's plans for Blink, and that information was a factor in the decision to switch to the Chromium engine.