MNO - I've been working on a client for Internet Chess servers such as the ICC (chessclub.com) and FICS (freechess.org) for the PocketPC using Tcl/Tk for Windows/CE.
It's fairly crude at present, The internal state engine is very minimal and configuration screens etc. are currently unimplemented.
The code now appears to almost work, using the excellent eTcl port. You need to also install the BWidget package somewhere that eTcl will find it.
I say almost since there are some issues
pICS currently looks a little like this:-
The script is at the following location: http://www.aowp08.dsl.pipex.com/mark/sw/dl/PocketICS.tcl
Please bear in mind that it is buggy and at best alpha quality at present. Don't risk playing rated games until the bugs are fixed unless you don't mind losing rating points!
The PocketICS (aka pICS) homepage is at http://www.oakden.org/mark/sw/pICS (but hasn't been updated for the release of the above version yet).