Google Earth v_3.1 for iOS has been updated for the iPhone 4’s retina display. The screenshot above came from the Google Earth app on my phone. The wow-factor from this app on the retina display is quite high. The “W” marks Zion Narrows and the red “X” marks Imlay canyon this weekend’s canyoneering objective. My first thought seeing the Imlay terrain: no one is going to find us soon.