Papercut is a new app that lets you use photos from the Bing homepage as the background of your phoneâ€™s lock screen. Itâ€™s fast and easy to use, all powered by Metro UI goodness.
It also gives you a great Live Tile that shows the latest photo right on your start screen. Each image has a short headline with its description (itâ€™s always great to learn new things, right?) â€“ just tap the photo when it is loaded.
The best thing is that Papercut is absolutely free to use, without ads (but if you want to support the developer and donate 99 cents, there is a paid version in the marketplace). Enjoy!