I watched Quilt in a Day this morning and she showed how to 'turn' a quilt and tie it and then she machine stitched along the border.
then she showed how to machine her own quilt. this one was quilt as you go but she only quilted blocks on batting, the backing wasn't added until she was to put the border on.
I've always thought if i did a quilt in sections, i'd have to add backing fabric in sections too. Hmmmmm.