Downloading Hedera 2.0 for Mac from the developer's website was possible 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. This free software for Mac OS X was originally developed by Andrew Merenbach. The application belongs to Internet & Network Tools.
From the developer:
Hedera is a peer-to-peer (P2P) file-sharing program for Mac OS X, built atop the giFT daemon, and based on the excellent-but-now-outdated program Poisoned. It supports five networks and uses the giFT daemon. The search filter now properly disables itself when nothing is selected in the search list.
You may want to check out more Mac applications, such as Unofficial RapidShare Tool, Myster or nicovidedownloader, which might be related to Hedera.