What the hell is this noise?

I get a big ol' boner when I hear this siren woop, but as far as I can tell, it isn't characteristic of a particular style, and I'm wondering where I can find more...

http://www.youtube.com/watch?v=luJJBeCFeM0t=29s

http://www.youtube.com/watch?v=raq3c0BjNwot=1m05s

http://www.youtube.com/watch?v=uKJBWsrHXVYt=1m46s

WTF am I looking for here?

Bacardi breezer is one hell of a drug

portamento?

Supersaw? Fairly common in hard trance.

Shit, those links didn't work the way I wanted...

It's not the Bacardi Breezer, whatever that is, Ivan, and I know there is some sort of portamento used, but it isn't the Supersaw. It's very much like the siren woop.

I think it's as simple as:

Sawtooth lead

in 'unison' slightly detuned

with portamento

(tweak al dente)