Sony Computer Entertainment America has announced a promotion for its PSPgo handheld gaming system -- buy a PSPgo by March 31, 2011 and get a coupon code good for three downloadable games. The PSPgo is sexy as hell, but it hasn't sold as well as Sony would have liked. Perhaps this promotion will give it a boost. Here are more details from marketing manager Kristin Neirinckx (great Scrabble score on her last name):