No. Have you heard the saying "it is better if nine guilty people go free than one innocent person being convicted"? That clearly means a person is innocent when they didn't commit a crime or guilty when committed it; what is proven or not doesn't make a difference to their guilt or innocence.
What "innocent until proven guilty" actually means: If you are member of a jury, you mustn't let the fact that someone is in court accused of a crime make you believe that the person is guilty of the crime. You have to wait until evidence is presented, and make your decision based on the evidence.
It is quite apparent that Psystar has done quite a few illegal things so far; the US court system is just a bit slow which means there has been no court decision yet. "I have not been convicted" and "I have not done anything wrong" are two very, very different things.
Rubbish. Innocent until proven guilty in the crinimal context means just that - you are innocent until the prosecution PROVES you are guilty. If at any stage the prosecution fails to come to proof (i.e. failing to present evidence on an essential proof) then the case is simply taken away from the jury. In a rape case, for example, if the prosecution fails to get the victim to say that it was done without consent, then there is no case for the defence to answer. The entire burden of proof lies on the prosecution.
It may appear that Psystar may have done illegal acts, but that is for the courts to decide, not you.
As an aside, I don't know why people would pay for this when Chameleon (and a few wee utilities) will do the same.