The Baby Jogger City Select is awesome!! Have a look on youtube for it to see how it works. Can have the seats any way you want. My girls like to face eachother.
Seeing yours in action on facebook has tempted me to look at getting one of these! They do look really neat and with DD2 being SO huge, I'm finding I would kind of like a double pram for the longer walks once she is a bit bigger lol.