I've been thinking about this ever since the first debate about starting these boards.
I work M-F 9-5 (with a commute). DP is on a 10 day shift pattern, doing different shifts, rest days often cancelled. This is great for work as it allows us to both work f/t with a manageable amount of childcare. But it's crap for family life and for a personal life.
A lot of the things SAHM's were saying they wanted to discuss completely rang true for us. Not being able to arrange a haircut, trying to get all the housework done with young DC around, that sort of thing. 90% of the time DP and I are solo parenting - for example, it's been me on my own with DD(3) all weekend as he's been out pretty much the whole time.
Sometimes it feels that most other people all have lovely standard hours. They talk about OH's helping out in the evening, or how to split lie ins at the weekend. What's a lie in? 
So I wondered if there is anyone else out there juggling shift work or opposite hours who fancied a chat as we sit so weirdly between the two boards?