The company being sued peddles more than just Apple knock-offs, they sell adapters for numerous brand-name laptops, including HP, Acer, Sony, Toshiba and Lenovo. It's a quite common business, as most brand-name power adapters can be expensive.
Apple is often synonymous with pricey, which makes them a common target for manufacturers of clone hardware like Psystar, but the term "counterfeit" better describes this case. It seems that Media Solutions Holdings was attempting to pass its adapters off as genuine Apple hardware.
It is not mentioned if other laptop manufacturers are taking any interest in the case. Apple is aiming for the company to cease manufacturing the adapter in question, which currently doesn't seem to be listed on the numerous sites they operate. Monetary compensation wasn't mentioned, but is possible.