If you can't even contemplate e-reading without a healthy side of inspirational photos, you'll be happy to know that Pinterest is now available on Barnes & Noble's Nook devices. Amazon already offers the popular app for its Kindle lineup, and its chief rival in the e-reader market will bring the app to all of its several Nooks. Starting today, new devices will ship pre-loaded with Pinterest, along with new apps for Facebook and Twitter. Those who already own a Nook can download the virtual bulletin board from the Nook Store; click the source link to do so.Filed under: Softw