Unfortunately that's (hardware-wise) the same "fake" multi-touch as presented by Kaj Grönholm in July. While Kaj uses three fixed points to achieve multi-touch (which works quite reliable, it seems), liqbase's "Multi-touch demo" allows two points and can detect movement of the second point if the first point is not moved (and it seems it's not very accurate due to different pressures for each touch).

This is achieved by the fact that two or more touches (assuming same pressure for all touch points) on a resistive screen result in the center point of all touches to be seen as the one single point. You can try this yourself with the "Sketch" application and two/three fingers on your tablet.

Edit: See a video of liqbase's "fake" Multi-touch.