Ok, started with this tutorial then hacked it up quite a bit. Made this nice and noisy mess of balls and lines that follow your finger somewhat. Processing is really fun and easy, well easy to work intuitively. Just copy and paste something and start changing the numbers, then paste something else and change its numbers…etc. And it usually just works.
Running the sketch through the emulator is exceptionally sluggish, but it works well on the device. Here is a very low quality and ironic video of that.
Also, noticed YouTube has implemented the drag-and-drop upload feature in HTML5. Yeah YouTube, yeah HTML5.