Adobe Generator seems like a nice addition to photoshop, the ability to generate image assets on the fly within Photoshop in a reasonably painless way. I'd have to use it for a real project to get a good sense for it, but my first instinct is that trying to pack all that information into the layer name is going to make the layer names much harder to read.

My first instinct was that they should have put the Generator information in layer metadata, but by the time you go that far, it might not be all that different from the slicing capabilities that were already present in Photoshop.

I'm curious to see what it feels like to actually use, but I have spent so little time in Photoshop lately that I'll probably just read what other people feel about it instead of taking the time to experience it myself.