http://online.wsj.com/article/SB1000142412788732468220457851...
They've provided parts to Apple for years, and their bottom line and stock price have been rewarded. (represents about 15-20% of their components sales)
The mobile division and the components divisions in the company operate fairly separately. That's why the oft commented, "They should just stop shipping parts to Apple to punish them for the lawsuit!" is kinda ridiculous.
When it was RUMORED that Samsung lost a significant contract for Apple chips to a competitor, they lost $10B in market cap: http://www.reuters.com/article/2012/05/16/us-samsung-chips-i...