According to a piece from BGR, they've heard from a man called François Beaufort who discovered a piece of code in the Chromium source that states "Get 100 GB free with Google Drive". This means that people who buy a Chromebook, could be in for 100GB of free Drive storage.
Considering that Google charges $4.99 per month for the 100GB option, this would be a huge incentive for Chromebooks. This move would save Chromebook owners roughly $60 a year on cloud storage costs. But, it looks as though this deal is only for the newly-released Chromebook and Chromebox, from Samsung.
Meaning that first adopters of the first-gen Chromebooks won't get in on this deal. Google should really extend it to previous Chromebook owners, too.