By the common description of "mixed" (i.e. it "shows" through skin color or certain physical features) I'm not. However, with ancestry...I only know half of mine.
Black (again...impossible to know from where...)
Native American (grandmother is Cherokee and Blackhawk...great-grandmother was Cherokee, great-grandfather was Blackhawk)
I think interracial children can be so cute. My only worry is society's reaction to them. I hate it when I see interracial kids get picked on for it. It's totally their fault for being born the way they were.
It's even better when they get to learn about their heritage. One thing that I really hate about being what I am, is that I have no links to my heritage. If I were to give it a name, I'd say I have culture envy. That's probably the reason I'm so enamored with foreign culture.