Hi Albert, I do. I am a heavy user of Kanbanote, allthough I am hoping Evernote will bring good Kanban functionality to the table.
I have about 16 Kanbanote boards on specific topics (projects, regular work and miscelanious). On top I have two others: a cockpit board (with all relevant notes from the 16 boards which give me an overview of all the action) and a Daily Journal Board (with an overview of daily notes today, this month, declaration information).
Every board has a number of columns with notes based on notebook and/or labels. On most boards I am using the following columns: Initiative (why am I doing this project or regular work, in light of goals, yearplan, etc.), emails (relevant e-mails to this topic), meetings & chats (relevant meetings/chats), docs&links, web articles, backlog, todo, doing, done, archive.
See the rules I have setup for the board about HR cycle. The rules correspond with the specific notebook and used labels.
Concerning Kanbanote and feature development. I hope the developer will come into action. There a lot of good ideas on the Kanbanote Feature Lab. But in last two years (or longer) nothing has been done with that.