. >= 4' screen . can type 'ESC', ~, | , <, >, `,^ . preferably same or near form factor of N900 . phone call support is not necessary . Must support linux like Maemo, Android is not suitable. SSH experience on android and symbian device (like E7) is too painful. . UMPC /MID like machine on the market is too large for me, and they generally use GMA 500 which is rather cumbersome to adjust screen brightness.