Tablet pc will be used on airliner

* Some of airliner will start to install low-grade tablet pc on the back of front passenger seat for each passenger.
This kind of tabletpc will be same as other kind of low-grade tabletpcs.
This kind of tabletpc will use ethernet,to connection the media library on the airplane for video and audio VOD service,or to get the flight Information or other informations,or to connection Internet.Not integrate WIFI.
This kind of tabletpc use 7" or 8" lcd screen,and all use capacitive touch screen.
This kind of tabletpc have one or two USB 2.0 port,a SD/MMC card slot,and a micro micphone on the front panel.But the earphone port (audio output port) and VOL+/- button still on the seat armrest.
This kind of tabletpc all not have loudspeaker.