The heart-rate monitor will take readings every 10 minutes if you're NOT moving around. When you start moving around it pauses that 10 minute reading. You can see that in your readings, too. I'm guessing you went to the bathroom or got a snack around 1:50pm yesterday. 🙂
There really are no changes to the readings since 1.0.1.
Yep, was also going to suggest this was the case with his readings. The gaps of greater than 10 minutes pretty much confirm that it is not taking HR readings no matter what, and that the Watch does not proceed on its scheduled timing if it detects you, or your arm in general, are moving/in motion.