The first thing that got my attention is that the synth doesn not have the standard supersaw controls like "Detune" and "Mix", but instead it has three different detune variations you can switch between.
The second thing I noticed is that when I played a sustained note, I heared something that I wasnt used to hearing when playing a supersaw. So I recorded it and I noticed thats there is a looping cycle going on. The wav cycles look exactly the same and this doesnt happen with normal supersaws.

The third thing is that, everytime I pressed a key it always started at the same phase, again which doesnt happen with the supersaw.
And last, when playing different keys I heared tonal changes so to confirm I played 6 otcaves and through a spectrum one can see that at certain keys the frequency goes all the way to 20khz, but then gradually losing the high frequency content, until another full one comes. This is typical sampler behaviour.

Here are the wavs I used to check for yourselves:
http://www.adamszabo.com/files/gaia_sup ... ctaves.wav
http://www.adamszabo.com/files/gaia_supersaw_notes.wav
So this brings me to my conclusion that the Super Saw in the Gaia are simply sampled loops (or wavetable loops or whatever you wanna call it), with 3 different detune variations.
This is not in all a bad way, it sounds good on bass sounds, but I just thought I would give a heads up to those who are considering getting a Gaia, so you wont get dissapointed if you wanted a "real" supersaw.