_PRISM By: Clint Siu I'm a big fan of relaxed puzzlers, especially those made specifically for touch screens. I also prefer short, unique experiences over eighty-hour games. So Clint Siu's _PRISM for iOS -- which is advertised at being about an hour long -- was a no-brainer for me, especially given the gorgeous visuals. The game is aptly named, as you play with floating geometric shapes that break apart and open up,…