Nokia is already under pressure in the high-margin smartphone sector as Apple, Blackberry maker Research In Motion and Google seize market share, leaving the basic cellphone business as Nokia's most valuable part. That is now under threat. Three years ago Nokia's position in emerging markets looked impenetrable, but low-cost chipsets and growing scale has helped a number of Asian manufacturers to price aggressively and seize market share, said CCS Insight analyst Geoff Blaber in London. The 'lean mean phone-making machine' that used to dominate the sub $50 space has come under huge pressure from agile rivals. Last week, Nokia abandoned hope of meeting key targets just weeks after setting them, blaming difficult conditions in China and Europe.