I spent some time working on a dashboard project (with the view to it becoming a start-up). I wanted to blend Panic style eye candy with something you could throw in a load of api keys (pivotal tracker, git hub, Google analytics, etc)

I abandoned the project mainly because the size of the addressable market is too small. I don't think Startups will spend $hundreds a month on this and there are only so many companies even interested in dashboards.