Taken from another forum:
SourceFor those who don't check ign, nintendo is being sued by a company for copyright infringment. Apparently some other company had a similar idea to the wii mote before nintendo made the wii. If the company wins, nintendo could actually fall, because they demand:
"The complaint demands that Nintendo be enjoined and restrained from further infringing on the patent, presumably by taking the Wii off the market. Furthermore, the filing demands that the court order Nintendo to pay Interlink three times the assessed damages, including prejudgment interests and attorney fees. Additionally, the plaintiff is demanding a jury trial of any and all issues pertaining to the case"