"Latitude ON is an instant-on computer system made by Dell.The system is based on a dedicated ARM processor (Texas Instruments OMAP 3430) that runs a custom version of a Linux OS.
Latitude ON runs MontaVista[4] Linux on an ARM-based subprocessor.[5] This so-called MontaVista Montabello Mobile Internet Device Solution provides a customizable, Linux-based Mobile Internet Device (MID) platform the laptop is able to boot almost instantly and view Email, document reader, calendar, contacts and access the Internet.
Dell claims that battery life can be extended to days.
Latitude ON Reader is similar to Dell's MediaDirect where the software is located in a separate partition on the system hard drive and has a dedicated button to power on."
took that from the wiki