Nice to hear that people are interested in this software!
The browser is written in C++, using either Qt4 or GTKmm (builds with both). If you like you can already check it out since it is open source (license is GPL v3): http://odf.bzr.sf.net/bzr/odf/
You can check it out if you have \"bazaar\" (bzr) installed with the following command: bzr checkout bzr://odf.bzr.sourceforge.net/bzrroot/odf/d321go
Building works like this:
1.) Make sure you have either the Qt version 4 or GTKmm development files installed.
2.) ./configure (answer the question to download \"libodf\" with \"yes\")
3.) Let the script build the program for you (just answer the last question with \"yes\")
4.) Execute \"install.sh\" with root-permissions
If you should experience any problems or if you would like to give some feedback (very appreciated!), then feel free to send me a PM or an e-mail (my address is listed on our homepage, http://www.odf-online.org/homepage/imprint.php