The cables go on the top of the hand....And there is ribbing all the way around. Since these are for a woman at work, I figured I couldn't go wrong with a snug fit for typing & such.
You can see the beginnings of the left hand mitt on the computer there. I knit through two entire movies tonight and made excellent progress. The thumb came out a little roomy, but since it is the first time I have "winged it", I am pretty proud.
Now I just have to remember to make the other mitt a LEFT handed one.