I think its a fantastic idea and I would definitely join in if I got your flyer (bit far for me to walk though I think!) I'm really shy at meeting new people so it would be a really easy, non-confrontational way of doing it.

I do agree with Teirae's point about the time though. I'm about to have a newborn, but also have a 4 and 5 year old so the 3.30 pm would be awful for me. It would also mean if you were going to the park that even if you didn't have mums with older kids, you're going to have to deal with the older kids in the park because school will be out. Not saying they'll be a hassle, just that I always found it far easier when they were smaller for my kids to play when there weren't bigger kids on the playground that play rougher games as big kids do. Once I've had this bub I'm hoping my day will be something like drop the girls at school, come home, get the dog, baby and pram organised and be out walking by 9.30 am.