I've spent too much time pregnancy forums where they have "due date clubs." Basically, there is a seperate thread for each month and people that are due around the same time can communicate in the corresponding thread.
I thought something along those lines would be neat on here. It could be a fun (and organized) way to see who is going when and possibly at the same time as you. We've always joked and talked about meeting up but this might be an actual way to firgure things like that out.