Apple sues Samsung [April 19 2011]

Apple Inc sued Samsung Electronics claiming the South Korean firm's Galaxy line of mobile phones and tablets "slavishly" copies the iPhone and iPad, according to court papers, a move analysts say is aimed at keeping its close rivals at bay.

Nokia and Apple have sued each other in numerous courts and as recently as last month Nokia filed a complaint with the U.S. trade panel alleging that Apple infringes its patents in iPhones, iPads and other products. (Reuters)