I was reading about Montessori for infants (provoked by Kylie's awesome blog post) and read that they encourage free movement for infants. Then I googled "montessori and swaddling" and ended up finding some articles that are critical of swaddling. Namely, there is research that shows that swaddling may not promote breastfeeding.
http://www.mothering.com/community/a/special-report-swaddling-reconsidered
http://www.mothering.com/community/a/rethinking-swaddling
Have any of you heard this?