Acoording to Ztop resource
"Brazil will be the first country to have phones running the open source platform Boot To Gecko, based on HTML 5, in the world. The announcement was made today in Sao Paulo by the Mozilla Digital and Telefonica, and the first devices will be launched between the end of this year and early 2013."
What's Boot to Gecko
? In short mobile "open" platform designed to native run HTML5 apps. Common development platform is Samsung Galaxy S 2.