Quite a week for lawsuits it seems. Apple is now getting even more flak from the industry, this time being sued by OPTi, a company that produces many types of DSPs and microprocessors. In particular, they are suing Apple for patent infringement, based on particular functions of Apple hardware:

The three patents at issue in the lawsuit are U.S. Patent No. 5,710,906, U.S. Patent No. 5,813,036 and U.S. Patent No. 6,405,291, all entitled “Predictive Snooping of Cache Memory for Master-Initiated Accesses”. The complaint alleges that Apple has infringed the patents by making, selling, and offering for sale desktop and portable computers and servers incorporating Predictive Snooping. OPTi has requested a jury trial in this matter.
Apple is making a lot of waves in the courts already this year, battling Cisco and many others.