I'm loving Trello. I love the simplicity of it and how easy it is to build projects in it. I'm creating boards like crazy but I need to know that I'm not setting myself up for a heartache in the next few weeks/months when trello converts over to a pay model, I can't afford. Is trello converting to a pay model? I don't see anywhere that it costs anything. It's amazing and I want to keep using it.
Please see http://trello.com/privacy