One of my little people is starting to get too big for the bike seat, but is still way to small to bike on his own or even be trusted on a normal trail-a-bike type pedal trailer (he's 3.5, but tall).
I was originally going to get a Weehoo: http://rideweehoo.com/
but a few days ago I saw someone jetting through the UT Austin campus with something that looked better (i.e. a simpler design). Does anyone know of (or better, can recommend) any recumbent pedal trailer manufacturers other than Weehoo that I can investigate?