Ben Pfaff wrote:

sms88 writes:

My next door neighbor has this one
http://www.amazon.com/dp/B0048MB82A which attaches to the stem, not
the top tube.

I've seen babies and toddlers in these in my neighborhood, at
least two different owners. *When I ask the owners about them,
they say that they like them. *(I know that it's this brand
because they mentioned that they were called "iBert".)

My shop has those. The sales rep calls them "baby launchers". There
have been no complaints (and almost no sales).

Chalo