Falling prices for mobile devices and eager markets are leading the digital giants to devote an ever increasing share of their attention to Asia. Google's decision to unveil it latest Android version in Hong Kong is just one indicator of how critical the region is, as is the heavy turnout of senior figures from such brands as Microsoft, Yahoo, Alibaba and Sony at the All Things D tech conference in Hong Kong. "The Asian market is very important. ... Some of the countries are really emerging with smartphones," said Won-pyo Hong, executive vice president for Samsung's global product strategy.