We have a Bumbleride Indie twin with a lascal buggy board maxi on the back. My oldest is 4, so he can walk on his own, but it is nice to have when we go into the city - I like knowing that he is contained and can't go running into traffic. Also when we go on long walks - DS and DD#1 like to walk, too, but can get tired. It is nice having the option of the step!
Valco Zee Two or Trimode Twin can be a triple with a real seat called the Joey. Trimode is more all terrain/for jogging and the Zee Two is more like a nicer City Mini.
You could also do the board option on most any double stroller. There's a device by Englacha called the Junior X Rider which offers a seat that sits on a rider board so you can use it either way. My 2 year old loves that thing!
We were 2 under 2, now 3 under 3!
Team Green turned Team Pink with #1, Team Green turned Team Blue with #2, Team Green turned Team Pink again with #3
Re: Strollers for 3?