Led Wall Display,Outdoor Advertising Sign Banner,Advertising Digital Signs Banner,Outdoor Signs Banner ALLIN , https://www.displayapio.comAccording to foreign media reports, Nokia's annual research and development costs are 4 billion US dollars, which is more than twice the annual research and development budget of Apple's 1.78 billion US dollars. At least one-third of them are used on the Symbian and MeeGo platforms. Nokia and Microsoft announced an alliance on Friday, will use WindowsPhone as the main system, Nokia