I rarely visit the forums here, but I'm so happy I stumbled upon your post. I was an user if Springpad and loved because it had this kind of visual presentation. I eventually switched to Evernote for its power and sophisticated note management tools, but miss the visual "idea board" features of Springpad that are really a necessity for many of my projects. I've created my own rudimentary versions of this within Evernote, but nothing fluid or convenient. I love where you are going with this and I really hope it is embraced by Evernote.