All features are the same. Only difference is the film format--Momma Holga uses 120mm film, and Baby Holga uses ("the regular") 135. Fantastic plastic! Got the baby today, from a fellow Lomomanila member (bacause his wife got him an LC-A). He included two ASA200 Solid Gold films and a cable release. Verrrry nice. Thanks Mike!
(Side story: Because of my excitement over the Holga135 I left the paper bag containing its box and cable release in Jollibee Philcoa, where I perused it. I only realized I didn't have the bag as I was about to disembark going home. So I hurried off back to Philcoa--a good half hour away--good thing Jollibee had a good crew and kept it. Embarrassing.)