Considering the BBC just said that 85% of all new cellular phone subscribers are from developing countries then I would say Olli is spot on.
Ultra brief article on Forbes:

Nokia’s chief executive Olli-Pekka Kallasvuo has predicted that mobile phone prices will continue to drop this year, giving his company a competitive advantage, the Welt am Sonntag reported.
‘This year the market will expand by up to 10 pct, and the average cost for a cellular phone will drop,’ Kallasvuo said in an interview with the newspaper.
‘Nobody can produce cellphones at the same low costs that we can and we can use our position as the market leader to our best advantage,’ he said.
About The Author
Stefan Constantinescu
Stefan Constantinescu (@WhatTheBit on Twitter) has loved technology since as far back as he can remember. It started with computers, but in the past few years his passion has turned to mobile devices. As a mobile phone enthusiast who lives and breathes devices that connect to the internet, he knows he is not alone with this radical fascination of all things wireless. He is strongly opinionated and enjoys a good debate so leave comments in his posts and he’ll get back to you!
Stefan began blogging as a hobby in the fall of 2006 and joined IntoMobile in the summer of 2007. Later he got a job at Nokia in March 2008, but as of June 2009 he has rejoined the IntoMobile team. He is currently based out of Helsinki, Finland.