Recently I help someone who wanted to have a Chinese bible on her HP (previously Compaq) iPAQ.
Here’s how I did it in case you are interested to do it yourself too.
1. In order to transfer files, install applications or sync your Window Mobile 2003 (or Windows PocketPc 2002, or Windows CE) you will need to install Microsoft ActiveSync
2. One of the programs I found is e-Sword, a free, useful, powerful bible tool for multiple platforms. The version for windows-based PDA is called Pocket e-Sword. Go http://www.e-sword.net/pocketpc/downloads.html for downloads.
You will need to download the core software (sort of viewer with no content), then download the bible versions you want (I picked the KJV Red version and Chinese Union Simplified). (there are other Bible languages, commentaries, dictionaries, and devotionals add-ons to download too)
3. Unless your pda comes with chinese software already (02?), you will unless need to install chinese font into your windows. You can get it free at Declan’s Guide to Installing Chinese Fonts on a Pocket PC (Instructions included)
Remember to reset the pda, set your font options in pocket e-sword to the chinese fonts in order to display the chinese characters correctly.
Other alternatives?
Pocket e-Sword does not word wrap the chinese characters, making it slightly difficult to read compared to the english versions.
Olive Tree Bible Software - Bible software for variety of handhelds
There might not be too many other bible software , but there are Bible “ebooks” for different viewers too (pdf, microsoft reader). One way is getting a txt or word format document of the Bible and use the viewers to open them.

your information is very helpful. However the Declan’s Guide to Installing Chinese Fonts on a Pocket PC (Instructions included)may not work with the new version of pocket operating system, as I found out in my IPAQ using MS pocket PC 2003. Do you any better solution?
I believe it does works well also. If not you might want to consider a commerical product like chinese star.