The Wall Street Journal reports that Apple has filed a lawsuit against Samsung over the “look and feel” of Samsung’s Galaxy series. The Galaxy series includes the popular Galaxy S smartphone line – Nexus S, Galaxy S 4G, Epic 4G – in addition to the Samsung Galaxy Tab tablet device.

Apple and Samsung have long had a business relationship. Samsung supplies many flash components for Apple’s iOS devices like the iPad, iPhone, and iPod touch, in addition to Apple’s flash iPods: nano and shuffle. Most recently, it was discovered that Apple has switched from Toshiba flash components to Samsung components in the latest MacBook Air line.

Samsung also manufactures the basis of Apple’s A4 and A5 processors found in the iPhone and iPad. Samsung has also manufactured RAM modules and display technology for Apple. Apple and Samsung are rumored to be working together on a new Super PLS screen technology for us in future Apple devices.

Update: Mobilized got comment from Apple: