PE data point: I forgot to check which version of Dingo my clean PE was rocking before I upgraded to Ermine, but it was probably the same version as that of everyone else who got a PE from WorldWide Distributors this week. The Ermine upgrade was fast and uneventful.

This afternoon when I started up the PE, the tablet stayed in lock mode and didn't react to my touch at all. So I shut it down by holding the power button for several seconds, restarted it, and all has been well since. I haven't put it into hibernation at all (I guess the EE has me trained not to!), but I suppose I should try it a few times.