Downloading Palua 3.0 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. The program lies within System Tools, more precisely System Optimization.
The actual developer of this software for Mac is Molowa. We recommend checking the downloaded files with any free antivirus. The following versions: 3.0 and 2.0 are the most frequently downloaded ones by the program users. The latest version of Palua can be downloaded for Mac OS X 10.6 or later.
From the developer:
Palua is the easy way to quickly switch the mode of your Function Keys on any Mac keyboard!
You need to run a game, or start a graphic application, or work on a project that need F1-F12 as function keys, just hit option+command+TAB and the switch will happen.
And as usual, done by Molowa, simple, elegant and out of the way.
You may want to check out more Mac applications, such as TM Error Logger, HDCleanUp or Smaart, which might be similar to Palua.