1) psychic powers that you can maintain, Telepathy ones in particular (my character's forte).
I'd suppose they last 1 round only, the one you "activated" them in, and if you want longer duration you have to maintain them period.
But I remember reading on a FAQ by the aithors on the spanish boards (that I can no longer find, dammit!)stating that "natural" ,non maintained psychic powers last five rounds...so I was hoping for the same regard "normal". The "5 rounds before resistance throw" on the Mind Reading power had me hoping...
It is refered to the magic section, not psi powers.
2) Area power applied to Telepathy stuff.
2a) is it subject to the limits imposed by psychic projection? Let's say I'm maintaining a 300 feet Area power, but my Psychic projection rol only reaches 15 feet away. Are the people further than 15 feet but closer than 300 affected? I'd say absolutely yes by the wording in the Area Power, but just to be sure...
Nope; the Area power tells you your max limit, but how many you can "take inside" is decided by your Psy Projection.
2b) let's say I'm touching the target of one of my telepathy powers, thus giving my Psychic potential +20, while having Area active...is that increased potential applied against all the possible targets or only the one I'm touching?
Just your target.
3)Hide Matrices power against "See the Supernatural" advantage.
I would personally rule this as the Hide skill rules:
if the character with See the Supernatural passes an Easy test with an active Search action, with degrees of success Passively diminished
by th Hide Matrices power, he sees them. If he wants to do a Passive Notice test, he's at -80.
Hide Matix only works against psy powers.
4)Physical Increase powers. When they say the growth is cut in half over scores of 10, how do we round? Starting 9 strenght and adding +2 results in 10 or 11?
Nope; it starts on 10. I mean, you you get 10 and one +1, you will still have 10. If you have +2 / 11, +3 / 11, +4 / 12... and so on.
5) Ki Abilities. It isn't specified anywhere, so for game balance Purpose I suppose they're all Passive Actions?
Unless stated otherwise, yeah.
6)Weight Elimination Ki Ability: it should be nice to know how it affects Acrobatics, Jumping and Running skills. Ideas?
Lower one level the dificulty check.