webOS also known as LG webOS, Open webOS or HP webOS, is a Linux kernel-based operating system for smart TVs, and formerly a mobile operating system. Initially developed by Palm, which was acquired by Hewlett-Packard, the operating system was later sold to LG Electronics. Through all iterations of the operating system (Palm, HP and now LG) the official name has been consistently stylized as webOS (lowercase 'w'). Palm launched WebOS in January 2009, then called Palm WebOS. Various versions of WebOS have been featured on several devices, including Pre, Pixi, and Veer phones and the HP TouchPad tablet. The latest version, 3.0.5, was released on January 12, 2012.