Very nice work. What's the output, canvas + javascript?<p>Love the quartz composer node style interface, it's very well done.<p>A few suggestions:<p>When entering in values, have them be saved on blur, not just on return keypress. I lost numbers many times just assuming that typing them in then going to another field would save my input.<p>I'd love a way to add names to the nodes. I quickly put together a pointer + 3 math nodes + a text node, and would want to add a label to the math node that I used as a multiplier constant for the x and y math nodes...<p>To that end, instead of having to use a math node of 0 + constant = constant, let me have a 'variable' node that just outputs whatever constant. Oh, full expression support for math too would rock.<p>It's good that you support multiple outputs per node output. That's how I was able to use a single math node as inputs for 2 other math nodes.<p>Your node bar should support drag + drop onto your editor area as well as simple clicks. People will try it both ways, it should just work.<p>How long has this been in development, and how many people have contributed? Using any cool libraries?