Google+ adds pan and zoom feature for high-res photos

Google+ tech lead Dave Cohen announced on Google+ this evening that the service has rolled out a new feature for interacting with high res photos. It's a pretty elegant implementation for navigation: a mouse wheel or two finger swipe will zoom you in and out, while clicking and dragging lets you pan around the image. A map of your image appears in the top left of the screen, showing you exactly where you are as you begin zooming in and panning around. Hovering over the map box with your mouse al...