Interesting article on using Wi-Fi/Cellular in P2P Positioning

An interesting artice appeared on WiFi Planet  https://www.wi-fiplanet.com/news/article.php/3572001 regarding the use of WiFi and Cellular technology in P2P positioning.

The article relates to technology available by Navizon https://www.navizon.com/ which is a software only positioning solution available on Pocket PC