The Sony Ericsson XPERIA X8 released in the fall of 2010 worldwide. In the US, the XPERIA X8 is available on AT&T's wireless network. The X8 shipped with Android 1.6 Donut and could be upgraded to Android 2.1 Eclair. Sony implements a version of their UX user interface on top of the Android operating system. Multi-touch support is not supported on official ROMS, although unofficial software mods allow multi-touch technology to work on the Sony Ericsson Xperia X8.