Yeah I was just playing around with it, seems about the same really except a few things are in different spots. The ability to erase parts of your annotations as opposed to entire strokes is also nice.
As for weather, pretty sure we are still using WSI, so shrug, not sure about that upgrade.
Overall, it will be like everything else, strange at first and then you won't even think about it.
This is of course, I am not missing some huge glaring improvement or change, lol.