Those angry birds just keep on coming. Weeks after announcing a spin-off exclusive to Amazon's App Store, Rovio is previewing a version indigenous to Nokia handsets -- specifically, those with Near Field Communication chips. Angry Birds Free with Magic (how's that for a mouthful?) includes five "normal" levels, along with 15 others that players unlock by tapping their phones together. In total, you'll need three friends with cutting-edge phones, as each one helps unlock five levels. Oddly, though, Angry Birds continues to be a single-player game, even after you've joined forces with your buddies to help each other advance. For now, it'll be available to C7 owners as part of the upcoming Symbian Anna update, though other Nokia handsets with NFC chips will get the game this year. Rovio also says it's working on a full version, which will be available in the Ovi store. For now, you can head on past the break to see a short video of some cartoon phones and cell-shaded piggies.