At a press conference yesterday Psystar CEO Rudy Pedraza said that his company is answering Apple's copyright infringement lawsuit Tuesday with a countersuit alleging that Apple engages in anticompetitive business practices.
According to a CNet piece Pedraza will sue Apple...
...under two federal laws designed to discourage monopolies and cartels, the Sherman Antitrust Act and the Clayton Antitrust Act, saying Apple's tying of the Mac OS to Apple-labeled hardware is "an anticompetitive restrain of trade,"
Psystar's attorney's are asking that the court invalidate Apple's EULA and for unspecified damages. Apple has 30 days to respond to Psystar's countersuit.
Read my previous Psystar coverage here.