ReadManiac

Freeware, high quality reader for Java (J2ME MIDP 2) cell phones.

[edit] Features

TXT, ZIP, PDB, PRC and TCR formats are supported;
Search and download new books from the internet.
Custom small fonts for comfortable reading on small phone screen.
Many text formating options.
Bookmarks and search features are supported.
On Siemens phones, and phones with JSR-75 or Motorola FileAccess API, ReadManiac FULL has a built-in file browser to access phone's filesystem. Text file size is limited only by available space in FLEX memory or on MMC card.
package comes with easy to use Midlet Building Wizard for Windows.