"We found that Blackphone lives up to its privacy hype. During our testing in a number of scenarios, there was little if any data leakage that would give any third-party observer anything usable in terms of private information." - × × ×

“Silent Circle was founded by a veritable all-star team of crypto geniuses, including Phil Zimmerman, the creator of Pretty Good Privacy e-mail encryption standard and the ZRTP secure calling protocol, and Jon Callas, who cofounded the PGP Corporation among others endeavors. At the Mobile World Congress earlier this year, the $629 BlackPhone made waves as soon as it debuted. According to Mike Janke, the company’s CEO, it was crazy-popular, and the new influx of cash is simply to deal with the demand.” — http://arstechnica.com/busines... - × × ×