If you look at this:
http://en.wikipedia.org/wiki/Piano_key_frequencies
You'll see that none of the standard notes are exactly 60Hz. The nearest is key Bb1 (A#1) at 58.2705Hz. You would have to tune the frequencies in some way to hit 60Hz, either via Master Tune (to tune the whole keyboard up or down), or fine-detuning in cents (to tune the oscillator up or down). You might not even be able to get 60Hz exactly. Use Oscillator2 (Osc1 doesn't have fine-detune available).
You'd need some sort of external frequency analyser to check the tone.
Regards Phase..
A phase-init value of 0 turns phase off. The oscillators will be free-running (random).
A phase-init of 1 starts Oscillator1 at 0º. This is what you need. If you want to start halfway at 180º (the other zero cross point in the waveform), then you'd need phase-init at a value of 64 or 65 or similar. A phase-init value of 127 is nearly 0º again.
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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!