Allreader

Allreader+ supports many mobile devies, Windows Mobile based.

[edit] Specifications

Reading of text files with following formats: TXT, HTML, RTF, FB2, DOC, DOCX, ODT, SXW, ABW, ZABW, CHM, PDB/PRC (PalmDOC, zTXT mode 1), and TCR.
Profiles Day&Night. Each profile have its own settings for text font, text and background color, status line, etc.
Voluntary encoding choice (ANSI, Unicode, UTF-8).
Status line including time, battery, pages amount, percentage of read text.
Background graphic support.
Work with hyperlinks.
Feature-rich text optimization.
Justification.
4 types of scrolling: Wave, Line, Smooth and Auto turn pages.
AllReader+ works even with archived files.
Bookmarks with navigation along them.
Search of any text line ignoring hyphenations. Using in search line symbol "?" which is interpreted as any symbol;
Proper English hyphenation.
Works with Dict, Lingvo and Slovoed dictionaries.
Text crossing (by percentage and by pages).
Quotations keeping.
File saving as TXT or PDB in voluntary encoding.
Permanent screen backlight is available.

All Reader for WM This is the manufacturer and support site.

They have other products, but not Allreader+, for:

So perhaps this will be extended at some point.