For the back of the Friendship Quilt v2.0 I used June Tailor's "Colorfast Sew-in Inkjet Fabric Sheets"Notice the hefty Price tag! 3 sheets for $7.99 this is a good 40% off coupon item.
After reading mixed reviews I was a little weary of using this product for such a special quilt. The main "problems" other noted was that the ink didn't set and that the fabric was stiff.
I followed the package directions to a "T" and got perfect results. But yes, the fabric is pretty stiff - think lightweight canvas. It doesn't seem to like pins either, they leave little holes and the fabric doesn't relax back into place to conceal the hole.
Overall I had great results with black and white images and text. I didn't try it out for a full color photograph but I'm confident that with a good high resolution image you would get perfect results! I even washed the quilt before giving it away and I had no bleeding or fading whatsoever.
Here is a picture of my results: