Android phone collected its location every few seconds and transmitted the data to Google at least several times an hour. It also transmitted the name

... the name, location and signal strength of any nearby Wi-Fi networks, as well as a unique phone identifier.

Google declined to comment on the findings

Read more: http://online.wsj.com/article/SB10001424052748703983704576277101723453610.html#ixzz1KGICBjLK

Apple's iPhones and Google's Androids Send Cellphone Location - WSJ.com