http://tunerstudio.com/index.php/downloads
Linux is currently just a tar files. You will need to extract them to a folder of your choice and start them using the .sh file. There will be installers in the near future.
*64 Bit Linux users will need to replace the [TunerStudioDir]/lib/librxtxSerial.so with the one found in [TunerStudioDir]/lib/alternateLinuxDrivers/x86_64-unknown-linux-gnu/
** If you install the 64 bit version of MegaLogViewer, you must also have a 64 bit JRE installed.