DS (10 weeks) loves to be swaddled, and pretty much NEEDS it to settle to sleep. I swaddle him lightly, using a miracle blanket, and he sometimes gets 1 arm free by the end of his nap. We daren'y try this at night though, and swaddle him tight from 7pm to 7am.
He plays for about an hour after a feed (give or take), but doesn't really bat at things too much (takes some encouragement), and can't even BEGIN to do a mini pushup (which they are meant to be doing at 3 months).
So, do you think his being swaddled is affecting his arm development? any stories about batting etc from other mums who swaddled?