Thanks Tommy. Busylife is rather interesting. I think if you are interested in using Evernote as a "database" for GTD, a program like Zendone which is a list manager that syncs with Evernote might be better than syncing a Kanban board to Evernote. Alternatively, Nozbe works with Evernote as well.
Note that I do not use any of these to manage my lists but I do use evernote as a digital reference database.