This one makes me feel all warm and fuzzy inside. The 1965 holiday classic (and one of my personal favs), Charlie Brown Christmas is now a tablet and smartphone app. From finger painting to Christmas caroling, this digital pop-up book, designed by developer Loud Crow, lets wide-eyed users experience all the traditional Peanuts adventures up close and personal. Available at Apple’s App Store, the Android Market, and Amazon’s Appstore, the $6.99 app lets you channel your inner Guaraldi as you play the famous Peanuts theme music at Schroeder’s piano. So if the kid in you has gotten lost along the way, grab your dirty blue woobie blankey, and get your Charlie Brown Christmas app before the Christmas bell rings for you no more.