A 20-30 Dollar circuit pen

OK I am in for this kickstarter project.  Basically its a pen that can write conductive ink.  Yeah I know this stuff has been out before, but the claim to fame here is cost and quick drying time.  It looks like the pen is disposable, so you have to buy a new one each time.  I wonder how long it would be til the cost comes down on this.

http://www.engadget.com/2013/11/21/circuit-scribe-kickstarter/?utm_medium=feed&utm_source=Feed_Classic&utm_campaign=Engadget&ncid=rss_semi

http://www.kickstarter.com/projects/electroninks/circuit-scribe-draw-circuits-instantly?ref=live

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