Caleb has started sitting up. Sorry for the sideways picture, but I didn't have time to re-orient it. It's a cute one, though, as just after he plopped right over onto the carpet again. But he can go about 10-15 seconds now unsupported, which sounds like very little but is so long in the mind of his Mommy. It's great... his world is opening up to him now and he can explore so many new things from this position. My little man is growing so fast!