Your can read them with Microsoft Reader for Windows or Pocket PC.

And best of all: This program is freeware for non-commercial use! If you want to use Reader Studio for commercial projects, you have to buy Reader Studio Plus.

Features:
- Import filters for html, txt, gif, png and jpg files.
- Support for basic font formating and alignment
- Allows you to customize all cover images
- Allows you to include a hyperlinked table of contents and an about page.

SOURCE

http://www.michisoft.com/programs/readerstudio/rstudio.htm

Reviews:

***** [Nov 11, 2005] by Ossie 3 using Axim x5
You just made my day. I've had several txt and doc files that I carried around to read. This makes it much easier. simple to use. I've used others, this is the best.

***** [Jan 10, 2005] by Xern using HP iPAQ 4150
This program is simply excellent; I finally found a use for MS Reader. Really satisfied, does just what it says. To the creator: Thanx man!

***** [Dec 6, 2004] by Eurycide using Cassiopeia EM500
Simple and great, works like author wrote. Thank U.

***** [May 26, 2004] by Hans Porzel using Toshiba e400
I'm satisfied with this good program!