Yes, that's also what I'm thinking of. I didn't buy the rose pink book cover though. I got the black one.
Regrettabily, so far, none of my fabric book jacket fits the official sony book cover. Because I tend to buy those which just fit my Japanese book. The pocket reader is 5 mm bigger than a regular Japanese book.
I'll have to wait until I go to Japan next time. Or, just buy some fabric and make one myself.