My first challenge was to modify the pattern to fit an iPad mini, as the pattern is written for a full sized iPad. The fact that my mother's iPad lives with her in a different city meant that I couldn't check sizing for accuracy as I went, so here's hoping that it fits! I'm okay at math, but whenever I start playing with patterns, I inevitably mess up. This experience was no different, I'm afraid.
Here are the dimensions of the cuts I ended up with, more or less. Please note, I can not vouch for accuracy so use these at at your own risk. For what it's worth, if I was to do it again, I think I'd add a half inch to each measurement.
Exterior/interior cover: 13 x 9.25 (edit: my version was 10.5 which was too tall!)
Closure flap: 3 x 5.5
iPad sleeve: 9.25 x 6.5
Pocket: 6.5 x 8.5
In terms of the actual pattern, I struggled with some of the instructions. I'm a visual learner and this pattern is all words, which is to be expected in a book I guess. My first issue arose at step seven, when I was instructed to bind the left long edge of the sleeve, which made no sense at all.
My next challenge arose when I tried to understand how to construct the pocket. Admittedly, I didn't read the instructions closely enough the first time around. I made an adorable pocket which I mistakenly assumed I'd sew on to the cover. Wrong! So I sat down and read the instructions over (and over) again. Then I went to Flickr and read a discussion thread where Ayumi pointed out a typo in the pattern (alas, not the one I think I found in step seven) which contained PICTURES! Yay! I finally understood how to make the pocket. Or so I thought...
Despite my challenges (and let me be clear: the pocket issue was mine all mine), I loved this pattern and I'm very happy with the end result. I'd definitely recommend it to others and would gladly make it again. In fact, I might just make one for my own iPad one of these days.
Edited on June 2: My Mom let me know that the cover was approximately an inch or 1.25 inches too long, so I've adjusted the measurements in this post to reflect this.