This seems to be a site to help organise mostly creative work. I'll try it and give my verdict of its usefulness. My worry is that I spend enough time on the ol' PC as it is, although I can appreciate its usefulness when on the road or for design teams that work apart.
"Organize anything, together. Trello is a collaboration tool that organizes your projects into boards. In one glance, know what's being worked on, who's working on what, and where something is in a process"
It's interesting that the word <trello> is Greek for crazy!