Openmoko was a project to create a family of open source mobile phones, including the hardware specification, the operating system (Openmoko Linux), and actual smartphone development implementation like the Neo 1973 and Neo FreeRunner. The whole project was sponsored by Openmoko Inc. The first sub-project was Openmoko Linux, a Linux-based operating system designed for mobile phones, built using free software. The second sub-project was developing hardware devices on which Openmoko Linux runs. The first device released was the Neo 1973, in 2007, which was followed up by the Neo FreeRunner on 25 June 2008. On 2 April 2009, Openmoko suspended development of their third device, codenamed GTA03, to focus on the FreeRunner. In 2010, development of the GTA03 was continued by Golden Delicious Computers under the new codename GTA04, which includes major hardware revision, and the first unit was shipped on 10 October 2011. Unlike most other mobile phone platforms, these phones are designed to provide end users with the ability to modify the operating system and software stack. Other Openmoko-supported phones are also available.