...Sony surprised the world with the PS Vita TV — a $99 or $150 console that plays PS Vita games and offers remote access to the PS4. But the rapid "one more thing"-style announcement may have left some confused about what the system does, how it works, and why anyone would want one. But as it turns out, the PS Vita TV's potential is far greater than a cursory glance might suggest. In fact, the PS Vita TV may be one of Sony's most exciting new products and could provide a critical edge for the PS4.