The very impressive new concept introduced by the 3Doodler kickstarter project, seems to have been advanced by SwissPen, that starts shipping their product to their early supporters this October (vs. Feb 2014). Both products are revolutionary and quite similar, watch the 3Doodler video, or the SwissPen after the break.

http://www.youtube.com/watch?v=DQWyhezIze4

http://www.youtube.com/watch?v=AdcCU9vuMa4

[Engadget]