It's not clear to me in what ways this is different than Trello apart from the flatter UI -- care to clarify?
Currently planned: Integrations with source control (GitHub, BitBucket etc), the ability to pull in contextual data from third party apps (Sentry, HoneyBadger), the ability to escalate tickets from support to the dev team from Zendesk, Uservoice etc. Plus support for more dev focussed workflows, planning, reporting etc