'Beating' usually occurs when multiple waveforms clash (phase modulate each other) when summed.
Easiest example is set two oscillators to sine waves, mix them both at the same volume, and then simply increase the detune amount on one of the oscillators. You get amplitude modulation where the waveforms sum and cancel each other out.
http://infekted.org/virus/files/Timo/SineBeating.mp3
You can use it as an effect in its own right. As used in dubstep/grime.
http://infekted.org/virus/files/Timo/GrimeyMod.mp3
I used FM and detune for the above.
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PS > And another thing! Will the Ti|3 have user customisable/importable wavetables?
A ribbon-controller or XY-Pad might be nice, too, please! Thanks!