Nokia will stop shipping Symbian smartphones this summer, thus leaving the revered 808 PureView (http://www.gsmarena.com/nokia_808_pureview-4577.php) as its last developed product on the "burning platform (http://www.gsmarena.com/ceo_stephen_elop_admits_nokias_poor_track_record_has_a_plan-news-2305.php)." Going forward, the only smartphones manufactured by the Finnish giant will boot Microsoft's Windows Phone OS.
(http://cdn.gsmarena.com/vv/newsimg/13/06/nokia-no-symbian/gsmarena_001.jpg)
Nokia pointed long development of Symbian devices as one of the reasons to halt their production. According to the manufacturer it takes 22 months to bring a Symbian product to the market, compared to less than a year for a Windows Phone handset.
Of course, there is also the matter of the number of units sold. Nokia moved only 500,000 Symbian smartphones in Q1 this year - significantly less than the 5.6 million Lumia devices sold during the same period.
Source (http://www.ft.com/intl/cms/s/0/d614b7ba-cddc-11e2-a13e-00144feab7de.html#axzz2W0TsfIib) | Via (http://www.slashgear.com/nokia-symbian-taking-final-breaths-this-summer-12286174/)
GSMArena.com