Nyko may be hitting Sin City's premier electronics trade show with a Yo Gabba Gabba! alarm clock in tow, but the outfit's PS Vita and Kindle Fire accessories are just a hair more enticing. First up is a Vita flavored follow up to Nyko's line of portable gaming battery packs, the PS Vita Power Grip. This $25 rechargeable battery pack promises to triple the battery life of your pocket PlayStation, and tacks on a pair of ergonomic controller grips, to
