Well the cheapest ARM based board that you can put uClinux on are:
Dlink DI614+ Rev A. About ~$US20 off of ebay, Compaq CP-2E/2W ~$US15 off of
ebay, and other (i.e. WAP11, AP9000, CompUSA 4 port router (FMI)). Some 
soldering required.

-- 
Greg Holdren
greg (dot) holdren (at) <initials of company> (dot) com

Maybe a linksys WRT54G Wireless router.

200-Mhz MIPS-CPU ,  4M-Flash , 16M-Ram , 5 x ethernet ports , 
1 x 54Mb Wi-Fi , allready runs uC-linux , and Linksys GPL'ed the code,
as required , and even included a full MIPS Linux Toolchain(binary) in
the Sourcepackage.

If you add a MAX233 , to the board (solder pads are there) , then you
get 2 x Rs232.

The WRT54GS , has double Ram+Flash , but costs a little more.

Think WRT54G  around $70


Carsten

http://www.compulab.co.il/armcore-gx.htm ?
$51 per 1000, with Linux already configured.

"Andreas" <somewhere@else.com> a &#4294967295;crit dans le message de news: 
colj25$pni$02$1@news.t-online.com...
> Hi,
> I ask me what is the cheapest micro capable of running (&#4294967295;C)Linux. I know 
> many ARMs, H8, Motorola Coldfire... Is there anything else? What derivat 
> is suggested? No special needs for power consumption, clock/MIPS, 
> integrated peripherials.
>
> Thanks!
> Andreas 

Andreas wrote:

> Hi,
> I ask me what is the cheapest micro capable of running (=B5C)Linux. I k=
now=20
> many ARMs, H8, Motorola Coldfire... Is there anything else? What deriva=
t=20
> is suggested? No special needs for power consumption, clock/MIPS,=20
> integrated peripherials.

Perhaps a VIA board with a 386 complatible ?
For one-of, with the leats work, with plenty of
peripherals and everything. from 69$US
As far as I know, VIA is the successor of Cyrix.
We onve measured 8Watt for Linux including a
3.5" harddrive.

Rene
--=20
Ing.Buero R.Tschaggelar - http://www.ibrtses.com
& commercial newsgroups - http://www.talkto.net

"Andreas" <somewhere@else.com> skrev i meddelandet
news:colj25$pni$02$1@news.t-online.com...
> Hi,
> I ask me what is the cheapest micro capable of running (&#4294967295;C)Linux. I know
> many ARMs, H8, Motorola Coldfire... Is there anything else? What derivat
> is suggested? No special needs for power consumption, clock/MIPS,
> integrated peripherials.
>
> Thanks!
> Andreas

For ARM, the cheapest alternative from Atmel is the AT91M40800 + Add Flash +
PSRAM

-- 
Best Regards
Ulf at atmel dot com
These comments are intended to be my own opinion and they
may, or may not be shared by my employer, Atmel Sweden.

> I ask me what is the cheapest micro capable of running (�C)Linux. I know 
> many ARMs, H8, Motorola Coldfire... Is there anything else? What derivat 

Is this strictly for a technology demonstration? The limiting factor
tends to be memory. A cheap micro will require off-chip RAM and flash.
A more expensive micro will require only one of those off-chip
devices. Lowest overall system cost, probably I would say you're
looking at ~$10 for the micro and $3 for RAM (in small quantities),
for a low-end ARM7 and say 16Mb RAM.

Hi,
I ask me what is the cheapest micro capable of running (�C)Linux. I know 
many ARMs, H8, Motorola Coldfire... Is there anything else? What derivat 
is suggested? No special needs for power consumption, clock/MIPS, 
integrated peripherials.

Thanks!
Andreas