I am an add-on provider on Heroku (DbInsights, BI and database analytics) and thought that the current marketplace is too far from the current standards of a typical marketplace (developed in this post). I propose an alternative with all the bells and whistles you would expect, go rate the add-ons you're using on Heroku !

Update to the twitter-bootstrap-components-helper micro-gem. It now does tabs as well as accordions. Read about it here

A micro gem providing an accordion view helper that generates the proper markup for Twitter Bootstrap.
Get it here