Actually, the cost is US$ 25, a lot less than the OLPC and it has just two connector, one HDMI and one USB.
Here is the picture of the $25 PC:

And now the same connected to a screen and a keyboard…

This computer, created by David Braben a game developper, once mass-produced could provide a computer to any student around the World.
The computer runs Linux, has a 700 Mhz ARM processor, 128 MB of memory on an embedded SD card and displays decent graphics with OpenGL 2.
Nokia enters the netbook market, offering even the first model with a HDMI connector.

To do so, it is equipped with a new chipset for Intel, because architecture today is limited to a VGA connector, not practical to often connect and disconnect the computer to a larger video screen.
This model exploits the “Pine Trail” technology from Intel that provides HD video capabilities and combines the processor with the graphics card on a single chip. This gives the computer the “HD Ready” label.
Nokia is a company that supports Linux and ARM processor suitable for both mobile as SmartBooks. But it ruled that the technology was not mature enough and preferred to go into this segment with a more conventional Intel solution.
These features may still change, as stated on the Nokia site.
The computer will not be available before the end of the year.