All the details are in their latest blog post, but since you're lazy - Telltale is soon to relaunch their web site with a new design, and they want your assistance and feedback in finishing it up.
Assume the role of a company's uncompensated QA team and get to work. This is similar to how we're going to be focus testing the next design of Mojo, except of course there will be compensation: you will be paying us for the privilege.
Source: Telltale blog