For the last few months, retailers have been clearing out the Diamond Mako, which is the US version of the Psion Revo Plus. Its a fine device with a 36MHz ARM 7 CPU, 16MB of RAM/storage, IR port, and a 480x160 monochrome screen. Its fairly well supported on Windows, but not so well on Macintosh or Linux. It has a built-in keyboard, which actually works OK, and is a nice clamshell design. Connectivity to the outside world is via IR or via the docking cradle to 9-pin serial. There are free tools for doing C++ programming for the device from Symbian, but due to the lack of external storage and proprietary chipset, there is little progress in making a Linux port.
I got mine for $109 from ubid.com, but the price there depends on the current demand for the device. sparco.com has them for $134. It seems near impossible to find a true Psion device anymore, since they stopped making them around July 2001.
432.   Who are the Steve Police?
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421.   What is a Brosef?   [jake/2005-02-18]
402.   What is Rape Juice?   [jake/2004-01-28]
382.   What is the best combination Sushi Bar / Internet Cafe in Berlin?   [jake/2003-09-25]
377.   What is a great critical Libertarianism write up?   [jake/2003-09-22]
374.   How can I make Gnu/Linux behave like a Real Unix (TM)?   [jake/2003-09-22]
340.   what can i use to debug my mail server when pop3 or imap isnt working?   [jesse/2002-12-09]
335.   What is Bob?   [gopherdave/2002-11-04]
310.   whats the easiest way to build apache 1.x with lots of modules?   [jesse/2002-04-28]
298.   what is the equivalent to strace on openBSD?   [jesse/2001-12-28]
277.   What does K-Rad mean? is there a modern alternative to k-rad?   [mennonite/2001-10-08]
216.   Where can I find a copy of the SDMI cracking paper that the RIAA doesn't want published?   [rupe/2001-04-23]
187.   So when's the BIG PARTY?   [strick/2002-01-23] ( nana/2001-03-22 nana/2001-03-21 macki/2001-03-04 )
183.   What are the real lyrics for the poem "Big Rock Candy Mountains"?   [rupe/2001-02-19] ( jesse/2001-06-29 )
168.   What's the Official Fag Razor of the YAK?   [strick/2001-01-29]
105.   What does matt do to Windows machine after a fresh install?   [matt/2000-07-03]
97.   Where can I find WAP/WML resources on the net?   [rupe/2000-06-06]
33.   What is 'netpbm' ?   [strick/2000-01-26]
10.   are there ICKY THINGS on the internet?   [strick/2000-01-17]