I left a full time job at the end of last year and after spending a few weeks with my first child when she was born in January I've been looking to build my own products. After a conversation with a friend who runs a content marketing agency about some of the tech issues he was facing I came up with the idea for Corrello. A large number of his top issues were down to getting data out of Trello. For example he was losing upwards of 2 hours a week looking between each of their boards (one per client) making sure everything was on time, nothing had got stuck and no one had added a comment without @mentioning the person required to move the card on. I originally built a prototype to show him but since that first week I've had something live and I've been working with a few early customers to get the initial feature set right.
I think there is a lot of potential to build add-ons and plugins to Trello for any developers looking for a project out there.
I look forward to all your feedback and comments :)