Wall-e can now be in a Sit Stay six feet away from me, for ten seconds, while there is a treat on the ground in front of him! I'll have to build it up to 45 seconds for his beginner obedience class starting in a couple of weeks, but the dogs in the class only have to stay for that long the last day of class for the "test", so I have a while to teach him. I'm sure he'll learn it quickly, though; he's a fast little learner!
I think Mika is starting to enjoy his company a bit more now. They play together every evening in the yard, sometimes only for a few seconds, sometimes for a few minutes.