Robot prints your tweet on the street

Set to debut at the G8 summit, this robot will literally print your tweet on the road. Taking the protest/social media marriage to the next level, this will let your thoughts be known without fear of arrest. The robot is in for a tough time in the cells though.

via Cnet

Seriously though, is this a valid form of protest, or is it a gimmick? Do you think protesting in this way will have any impact, or will those who should be reading the protests simply never see them? Check details in the link above.