Ethereal does not equal incorporeal.

For example: Shadows, Wraiths, etc are not ethereal. They never manifest. They are permanently incorporeal, only half there. Ghosts are pretty unique in that they can be ethereal or incorporeal. Moving through large rocks is fine when you're ethereal.

As for telekinesis? Supernatural abilities have no Somatic component, so, unless you feel like pantomiming a jedi force choke, you're pretty well good, with or without hands.

Speaking of that: (1d4)[3] delay before I can telekinesis again (last round was round 1).