Even if you love the iPad, you’re probably not keen to write your next novel using its on-screen virtual keyboard. You may not be thrilled to type up a lengthy email with it, either. Steve Isaac felt the same way. So the Seattle-based software designer got to work on a way to make the iPad easier to type on. Using a stretchy silicone, he invented a keyboard that sits atop the tablet’s on-screen keyboard when the device is turned on its side. He called it, TouchFire. Isaac, who worked on an early tablet at computing startup Go in the ’90s, isn’t unique in dreaming up this type of device. But his invention has garnered intense support on Kickstarter - a website where entrepreneurs and artists solicit funding for their projects