Leevi comes with absolutely no warranty, see License here. You must agree that before you download, install and/or use this software.
WARNING: As USB protocol is reverse engineered and there are myriad of things that haven't been yet revealed, there is always a small change that something goes wrong. Although Leevi is proven to work without breaking anything, I don't take any responsibility, you use Leevi at your own risk.
All downloadable files are hosted in SourceForge. Please proceed to there in order to download Leevi.
You may also checkout an SVN repository by
$ svn co https://leevi.svn.sourceforge.net/svnroot/leevi leevi
if you want to download a development version of Leevi. Development version usually contains some features and/or fixes that are not yet packed in distribution. It is also possible to explore the source code online at http://leevi.svn.sourceforge.net.