Finished the second prototype and taken the photos, finally. Just need to write up the pattern at some point.
Sun 16 Mar, 2014:
I have finished the latest prototype but I want to try to make another one with increases and decreases making the rounded corners rather than sewing the square corners across diagonally with the cover inside out. I would also like to make the back of the cover stocking stitch (stockinette) but that will warrant some decreases after the initial cast-on and that might look weird. Another idea is knitting from the top down but then I am not sure how to perform the increases from neck to body.
Fri 7 mar, 2014:
I am designing/unventing this pattern as I go along. I initially made this with stocking stitch and had it completed (no photos because I frogged it) and am now making a ribbed/cabled version which, if it works, I will write up.