I am build fbreader with qt4, and some patches.
FBReader is a free and open source e-book reader for GNU/Linux, Microsoft Windows, and other platforms.
It was originally written for the Sharp Zaurus and currently runs on many other mobile devices, like the Nokia Internet Tablets, as well as desktop computers. A preview of FBReaderJ (the Java port) for Google Android was released on April 13, 2008.
Supported formats include EPUB, FictionBook, HTML, plucker, PalmDoc, zTxt, TCR, CHM, RTF, OEB, non-DRM'ed mobipocket, and plain-text.