MSI is well-known for showing tablets at Computex -- it even showed what amounts to the same tablets at two different shows. It's certainly shaking things up this year, however, with the Slider S20. We've seen hybrid tablet PCs before, but the Windows 8-toting S20 has a fairly slick tilting mechanism that locks the 11.6-inch touchscreen at an angle, turning the slate into a pseudo-laptop right on t
