Source: The Register
http://www.theregister.co.uk/2009/07/17/texas_touchpad_trouble/
Apple, LG, Microsoft, and 20 other companies are being sued for patent infringement by a Texas firm that claims to have invented the touchpad.
Tsera LLC, a Texas business that's apparently named after a defunct Native American tribe, filed the suit on Wednesday in the US District Court, Eastern Texas Division.
http://www.theregister.co.uk/2009/07/17/texas_touchpad_trouble/