I would think it is a C series, since it has a big C on the front of the device. Also heard talk that it is in the N line, but that talk is basing off the looks, not what is printed ON the device.

Since it is running Symbian and has a big C on it, I would lean towards it NOT being the N9, unless the footage was taken before the decision to only use MeeGo on the N series was made.