John noble will be tweeting live during this weeks episode

His account is apparently going to be this:
http://twitter.com/#!/LabDad1

Also, your typo in the title made me giggle, because it made me imagine Walter gnawing on a teething ring like my sweetheart's little niece.

I was posting from my cell phone and it kept wanting to put in teething instead of tweeting

http://www.fox.com/fringe/sprint/tweet/