Flickr HD (or flickr hd, as it's styled in the App Store) just got a nice update recently to version 6.0, and it's quite an excellent way to browse and view the popular photo-sharing site Flickr on an iOS device. The latest version brings a feature called "Instaswitch," which will automatically change the picture shown on the app every single minute, right on the minute (I guess it loads up in the background). The app can also display a clock and the photo information on the screen, so you can use your iOS device as a digital photo frame and bring shots in directly from your Flickr account, public photos from someone you know or even Flickr's own favorites feed.
An update early next month is set to bring even more options into the app, including being able to adjust the time that each picture changes. If you spend a lot of time looking at your iPhone or iPad's battery charging screen and would rather give it a little something better to do while sitting in a dock or a stand, Flickr HD is a nice app, and it's on sale right now for just US$1.99.