I just got this response from Rainer Keuchel, who ported Perl and Vim 
to Windows/CE:

----------  Forwarded Message  ----------

Subject: RE: Thanks for porting Vim!
Date: Mon, 24 Jun 2002 11:26:55 +0200
From: "Keuchel, Rainer" <rkeuchel / allgeier.com>
To: 'Ned Konz' <ned / bike-nomad.com>

> I just wanted to thank you for doing such great work with the
> Windows/CE ports. I'm now happily running Vim (and soon Perl) on my
> NEC MobilePro 770.
>
> Is there any chance you'd be interested in porting the Ruby
> language? There has been some work already on doing this for the
> Pocket PC devices, but they didn't take advantage of your
> celib.dll.

Just downloaded the source code. Does not seem to be a great problem.
Will look at it when I have some time...

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-- 
Ned Konz
http://bike-nomad.com
GPG key ID: BEEA7EFE