Grabbing and heads up

Yesterday Unovandu started grabbing - or rather tired grabbing a ring lying in front of him. He didn't quite manage it, but he is getting there. And when he lies under his "activity center", he also tries grabbing the rings hanging down in front of him. The result is that he hits them instead - but again, he is getting there.
He's getting better in holding his head up when lying on his tummy. He also does not roll over immediately, but manages to hold his balance for quite some time.
Now he has started crying, which means its feeding time...