This service looks really cool, I like that it's flexible for different preferences. Some guys on my team like Trello's columns better while others like full blown tickets a la JIRA.

Will you offer some sort of micro plan for small teams of 5 or 6?

Here's a good comparison of the various PM tools so you can compare Matterhorn to the established players. http://stackshare.io/stackups/trello-vs-asana-vs-basecamp-vs...