Insert Coin: PressurePen stylus lets you make all kinds of lines on your tablet
In Insert Coin, we look at an exciting new tech project that requires funding before it can hit production. If you'd like to pitch a project, please send us a tip with "Insert Coin" as the subject line. If you're like Charles Mangin, you love your iPad or Android tablet, but wish it was a little more Wacom-esque. But why wait for hardware manufacturers to bring the styli to you? Mangin has concocted the PressurePen, a pressure-sensitive stylus that plugs into a tablet's audio jack. The periph…