Cool puzzle, and really slick interface.<p>My one bit of feedback would be that you should make it get more difficult more quickly. I lost interest and stopped playing it because it didn't seem to be getting substantially harder, it was just basically the same thing over and over again, but the design of the puzzle is good and means it should be easy to make more difficult levels.<p>Perhaps you could have a difficulty selector so that the player can advance at his own pace.<p>You could also introduce a little twist after a while where some of the points are fixed in space, and you must rearrange the others around the fixed ones, instead of being able to move all of them.<p>You could potentially also make different types of edge (e.g. red edges in addition to the green edges), and for example a red may cross a green, but not another red.