We are witnesses of the flood of responsive web sites. Those sites are made to be useful on all kind of devices, from desktop computers to mobile phones. It’s not enough to have only a template that’s responsible. If you are about to use modules on the responsive website, those modules should be responsive as well.
Hot Film Tape is responsive Joomla module because it supports the responsive websites. This module automatically resizes itself in order to fit the available screen space as good as possible.