Here are a few questions I came up with while experimenting with MySQL 5.6.7 & 5.6.8. They are the impressions of a first-time encounter with 5.6, which is a single opportunity for a person to point out the things that strike as odd.
Bugs-wise, just submitted another crashing bug for 5.6.8. I'm just one man, so I extrapolate to realize there is still much work to be done.
The below list does not necessarily make for a bug list; mostly things that puzzle me. I hope it can stir some additional thinking.