HP webOS is a proprietary mobile operating system running on the Linux kernel, initially developed by Palm and purchased by Hewlett Packard (HP) in 2010.
webOS uses multi-touch gestures to navigate on the touchscreen. webOS 1.4.5 does not natively include a virtual keyboard application as it includes a slide-out keyboard, but users can enable a virtual keyboard through patching. The interface uses "cards" to manage multitasking. Applications can be launched from either the "Launcher", which displays a default of three pages of applications icons in a scrollable grid, or the Quick Launch bar, which displays five icons inline horizontally. The user switches between running applications by a flicking gesture from left and right on the screen. Applications are closed by flicking a "card" up—and "off"—the screen.
Check out HP's latest touch tablet :
http://www.youtube.com/watch?v=c_-5C7g4-YU
