Open webOS, formerly HP webOS or simply webOS, is a mobile operating system based on a Linux kernel, initially developed by Palm, which was later acquired by Hewlett-Packard. Palm launched webOS in January 2009. Various versions of webOS have been featured on several devices, including Pre, Pixi, and Veer phones and the HP TouchPad tablet. In December 2011, HP announced it would release webOS source code in the near future under an open-source license. Browse through a list of WebOS Manufacturers from the list which follows, and select a manufacturer to view the WebOS devices under that manufacturer.