Within 10 minutes of arriving, simply through their grandparent mind control superpowers, my parents had Squidge walking. I mean actually locomoting from one location to the next, not simply launching himself off of something for a few step to crash into your arms. Actually walking. Like a person and everything.
Of course, once we turned the vidcam on him, his legs suddenly turned to jello and all leg/body coordination flew out the window. We did manage to capture this, though. The sound makes it.
I fully expect them to have taught him the alphabet by the time I get home.