Depending on your account setup, each todo or each todolist will be converted into a card and shown on a board. Kanban boards help you easily see where the status of all your todos at once.
Boards are added to Basecamp just like every other tool. You can access them from the project home screen or from the project tool drop down by clicking on the project name. You can even turn off the tool for any project.
Easily move cards by dragging and dropping. You can sort per swimlane (list) or move onto another swimlane. You can also reorder your lists simply be clicking on the list name and dragging too!
You can change what you want displayed for each card making it easier for you to focus on the important information for your business. Set this one time and the setting gets saved to appear this way for all your projects.
Sometimes you need to view all the todos with a particular label, sometimes you need to view all todos for a particular assignee, and sometimes you need to do both! Now you can easily filter to find the todos you're looking for quickly.