It's a bike-it's a stroller- no, it's a TAGA bike!

A TAGA bike is an awesome invention which allows you to bike up to two children around securely. It's advantages over a trailer are that the children are in front of you where you can see them; the bike is three wheeled so you won't fall over; and it converts very easily to a stroller so you can bike to a shop and then take your kids inside.

Check out tagabikes.com for conversion video and specs.