It looks like it might be the same. If so it looks like they alternated which side got the knits and which side got the purls or it could be just the changing colors make it look that way. I've been thinking of trying it with the yarn held in back for slipping the knits and/or in front for slipping the purls. Before I play around with it like that I decided to finish the Kindle cover.
I should never overestimate my basic arithmetic skills.