Nokia late on Monday said its high-end Lumia 820 and 920 phones, which will run on Microsoft's Windows Phone 8 software, will this week reach first operators and retail outlets in France and Britain and later in Russia and Germany as well as other select markets.

As a result of the squeeze on expanded output of solar panels and batteries, Panasonic's energy unit may struggle to reach a target of raising sales to more than 1 trillion yen, or 10 percent of overall sales, and operating margin to at least 10 percent by March 2016, the sources said.

Forstall, seen as a polarizing figure inside Apple, had been billed as one of the future candidates to take the top job at Apple. He was the executive behind the panned Apple Maps app that the company announced with much fanfare in summer.