Current stable version of kplex. Known bugs detailed here.
Download kplex source (All supported platforms)
MD5: a8c7155eb5df13ad4e9fbd3cbf07343e
Download kplex for 64-bit Ubuntu 12.0.4 and later
MD5: 5b44b5397c93531b7faa6431591fbeca
Download kplex for Raspbian
MD5: 481eaf79b3115b11d073cfda60f950f0