I think it's great, but doubt it will change anything.
What will be great is when women who are built like that don't have to go on campaigns to declare their beauty. When we can have a size 8 or 10 actress/model on magazine covers without stories of how she's "voloptuous and doesn't care what Hollywood thinks".
I also think it's not right to say "real women have curves" because it does imply that thin, uncurvy women aren't "real" women - and many of those women are naturally like that. And yes, I'm curvy, but I have plenty of friends who aren't and they are definitely real women!