Who, for example, for a hobby project to get the Android interface in detail want to recreate, since Tuesday Googles Roboto font to use. The techgigant has the font being fully open source.
Google has introduced Roboto in 2011 with Android Ice Cream Sandwich. With the font designer Christian Robertson tried the techgigant to the mobile operating system refresh. Since then appeared in various products, including Android and Chrome OS.
Roboto was already appeared under the Apache license, but now, Google, the font is completely open-source. This means that the toolchain is fully based on open source software. Further added Google support for Latin, Cyrillic and Greek characters in Unicode 7.0. In total includes the font-family of Roboto now about 40,000 symbols.
For designers and other interested parties, Google has a GitHub page created which Roboto and additional software to download. The project worked in various teams of Google, including of Material Design, Fonts, Android and Internationalization Engineering.