I found this thread while looking for a solution, and thought I'd chime in for a second...
I am currently developing PDA software that retrieves an xml file from our controller unit, and builds its GUI according to what is described in the xml. Because of a redesign of the xml file to cater to our growing wishes, we decided to use XSL to transform the new style of xml into the old, so our application could remain operational with minimal additions.
I did some research, and was quite wrongly under the impression that the xsl transform was very possible on my pocket pc 2003 device (WinCE4.2).
This article: http://www.pocketpcdn.com/articles/xmlfaq.html states that MSXML 3 ships for Windows CE 4.X.
But our support people blatantly stated that I should hop over to Windows Mobile 5.0, which does support msxml4! All I want is a possibility to fully employ the XSL transforms in WinCE4.2, but apparently there isn't enough reason for microsoft to implement this?
As a side note, if someone can point me to a (different) solution, I would be overjoyed!