That's basically what the mobile phone market looks like right now.
In the fourth quarter, according Canaccord Genuity analyst T. Michael Walkley, Apple and Samsung combined to generate 101% of industry profits; for all of 2012, the total was 103%, reflecting the full year operating losses by BlackBerry, Nokia and Motorola Mobility. (LG and HTC both were in the black in 2012, I would note.)
While the Street has lately become nervous about Apple's competitive position, note that Apple in the fourth quarter generated mobile device operating income of $12.265 billion, which was 72% of the operating income generated by the 8 largest players. For all of 2012, Apple's $35.903 billion in operating income from mobile devices accounted for 69% of the industry total.
Samsung was 29% of the total for the quarter, and 34% of industry operating profits for the year.