Not sure what the real advantage of this is. So you will first need a bluetooth enabled helmet, or have to buy something to stick to your helmet to give you this functionality just so you can have voice commands that could be simply integrated into the bikes hand controls... like they already are.
What suggestions is the bike going to give to be a better rider? I know I would not want something squawking in my ear every time it thinks I did something wrong and wanted to correct me. I am all for tech on bikes, love it in fact one of the reasons I love my BMW GSA, it is loaded with it. I would rather have helmets with HUD built in like the BMW concept... not the skully helmet.
Not exactly against the idea, just don't think it is that great of an idea.