VIDEO Federer testing a new #tennis racquet?

[youtube=http://www.youtube.com/watch?feature=player_embedded&v=uvZJZGlDsaQ]

These pics recently turned up on the internet showing Roger Federer hitting with a black painted mysterious racquet.  There is quite a lot of speculation as to what Roger might choose in order to change his game and adopt a new more modern style.  As Roger currently plays with the smallest head size raquet of all top 10 players (and probably top 100) it would possibly benefit him to move to a larger 95 sq. in or even 95 square in size racquet head.