This is cool. Realtime? Awesome.<p>Some thoughts:<p>* As others have mentioned, it's too easy to single-click accidentally and create a note.<p>* Pasting a URL to an image isn't discoverable. An explicit button for this on the toolbar, or one that appears when a new note is created, would be better.<p>* That aside, I really, really want to be able to just drag and drop images from my computer onto the page.<p>* As others have noted I wish I could zoom out to see more notes. The "map" is a good start but I think it should be fully zoomable.<p>* Chat is cool but it sort of takes you out of the experience. Try experimenting with integrating the chat into the corkboard metaphor, maybe: Instead of a pop-up in the lower-left corner, let me create post-its that are actually live chat rooms.<p>Anyway, this is a great start. I hope you keep improving it!