oh yes! Forgot about the new light blue petrol soft calf that is coming out this fall. It looks like the old quilted petrol from '05 but it is a bit lighter and brighter. Not sure if that's a color you'd consider either. I felt like it was a cross btw petrol and bright blue. Not exactly a light blue though, but maybe something you'd want to keep in mind? This color will probably be available in the next few months.
Periwinkle is TDF too, but extremely rare... I love seeing it on ebay!