
I'd like to mention
FBReader 0.6.3, an open-source e-book reader for the
Sharp Zaurus with 240x320 or 640x480 screen resolution (Qtopia-based ROMs or pdaXrom). Originally it was written to support the
FB2 format (an XML-based format quite popular in Russia), however it now also support plain text as well as a subset of HTML (HTML images are not supported yet). The reader also supports GZIP and ZIP archives.