A brief survey of my favorite paint company websites as well as some decorating sites like HGTV show that pastels are very popular, but intense earth tones like pumpkin and other hues in the orange/red/brown family are also getting a lot of exposure. Sherwin Williams' new 'Intrinsic' line focuses on colors that reflect Native American traditional colors, while Benjamin Moore has declared that pastels are all the rage.
I've always been a fan of painting walls in luscious pastels like this in the spring. It seems to bring outdoor freshness into a home. Pastels work well in smaller areas - they can make a space look larger.