The game 'Angry birds FREE with magic' will be launched at the WIMA conference and feature 20 pig bashing levels. Five levels involve normal play then you have to find a friend with an NFC phone - touch the phones to unlock the next five levels. You'll have to find another friend to unlock the next five and a third to open the remainder.
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Use NFC tags to unlock levels and they can be hidden in objects in the game or in real life locations with hints give in the game.
Rovio are using the Nokia C7s NFC experience for the first time in their game. The game will come pre-installed with the Symbian Anna update and included in Nokia's NFC devices from now on.
A full NFC version of the game is also in progress for future download