Even though we focus a lot of our CES coverage on the biggest (read: flagship) products announced at the show, we revel in the opportunity to find the little gems scattered in various corners of Las Vegas that may not receive quite as much attention. One such product is the BBK Vivo X1, a phone that was recently launched in China but hasn't seen any time on this side of the Pacific. Up until this week, this particular piece of circuitry was the title holder for "world's thinnest smartphone," measuring in at 6.55mm thick. (The Alcatel Idol Ultra now claims this title at 6.45mm, although it's tech