Raspberry Pi - cheapest(?) possible computer

Sorry. I cannot use Korean because the Windows IME has been broken during remapping the key setting to use my Apple keyboard.

an ARM based small computer. smaller than a Wi-Fi hub.

The below are picked from the FAQ: http://www.raspberrypi.org/faqs

a $25~$35 small linux based computer
Spreadsheets, Wordprocessor, Movie playing etc.
 a standalone linux machine.

Keyboard and Mouse via USB
HDMI/RCA ports for display devices
3.5 pi audio output jack
SD card slot for OS
Networking via RJ-45 or USB
microUSB powerline

may be available in Sept. 2012
Linux OS like Debian etc. included in SD card
No Android or Windows 8  support, mainly because of small RAM.
No suppert for x86 application. Only for linux ported, re-compiled ones.

Model A: no ethernet. but can have via USB hub.
5V power via a microusb jack, for use with the common handset and smartphone chargers.

Good video output. Blue-Ray, H264 etc.
Mainly for educational and other use with charity.

No preorder. No mass order. One person one Raspberry Pi at release.