More like what they did with the "X" value of CDROM drives. 1X, 2X, 3X, etc. It started out being a rough multiple of the expected data rate. Eventually manufacturers realized they could change it to measure something else (I think rotational speed or something) so they could inflate the "X" value more and more without a corresponding increased data rate for the user. This will inevitably happen when you let marketing define your units or there is no regulatory body enforcing basic truth in advertising.