Yup, that's right. According to Joystiq, Google artist Susie Sahim sneaked the triforce from the Zelda series into some of Google's logo. Though short-lived, the logos was screenshoted by many people (seen above).

Joystiq attempted to contact both Google and Sahim, but have not yet received any responses. The original images of the logos can be found at blogoscoped.

Source: Google artist sneaks Triforce into logo, Google removes it