Any thoughts on comparison folks? http://wallboardr.com
Note that this isn't a value judgement - if it's _intended_ to be a niche product that's really appealing to one market segment (so they'd always choose it over e.g. Trello because of its specialization), that could be a good thing.
I initially wanted Wallboardr to be a fairly free-form board that wasn't specific to any industry, but as it developed I thought that approach was lacking in power for my primary audience which was definitely developers.
But it's very interesting to see what Joel and the guys/girls have done because I think they are hitting a sweet spot between power, simplicity and industry-neutrality.
To be fair they also have comments and todo lists per card, like Pivotal, so Wallboardr is a bit behind at the moment. I've been wondering how essential sub-card todo lists are for a while, I've found myself wanting them, but MVP ideals have avoided so far.
But we have a stacked burnup chart! :-P
But very interesting to hear that there would be interest in an open source version. Hmm....