Built-in + External Flash

[agiaccio]

I'm looking at getting an Olympus Point-n-Shoot digicam that can use both the built-in flash and an Olympus external flash at the same time. If purchasing the Olympus FL-36 external flash, which model can make use of both flashes at once?

Olympus C-7070 Wide Zoom
Olympus C-8080 Wide Zoom

Which of these two would perform better with indoor people pics using both flashes (accurate white balance, accurate colors, accurate skin tones) in full AUTO mode?