Everyone, take 30 mins of time and get a good read to the paper.
Apart from being an interesting mathematical speculation, I can consider it at maximum to be a special case of E=mc2 transformation.
Their working hypothesis will have to undergo some tough experimental checks. Lukily SWCNT are not that tough to obtain, so experiment could be underway in a matter of weeks if someone will be willing to take the challange. http://ipn2.epfl.ch/CHBU/NTbasics1.htm
I would not hold my breath for any "exceptional" results thought.