Touch Pad/Tablet
The XO-1 comes equipped with a unique dual-mode pointing device. It functions both as a conventional trackpad (the capactive-sensitive "Glide Sensor") and as a graphics tablet (the pressure-sensitive "Pen Tablet").
Basic information about how the touchpad/tablet is intended to be used can be found in the Human Interface Guidelines.
Hardware Specification
The hardware is manufactured by ALPS Electric. The specification (File:KGDMFA001-non-confidential.pdf) may require Acrobat reader with Japanese font package also installed for successful viewing and printing). See http://lists.laptop.org/pipermail/devel/2007-August/006080.html for missing details.
PenTablet Software Support
As of Build 656(2008-01-17), the XO system software does not contain support for the Pen Tablet. For more information, see Pen Tablet Support.