iTweetMyTunes 4.1 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The program lies within System Tools, more precisely Plugins & Addons. The actual developer of this software for Mac is Sebastien Stormacq.
From the developer:
iTweetMyTunes brings iTunes and Twitter a step closer.This applications allows to post your current iTunes track name to Twitter.