At the beginning of the second half of 2010, Yahoo will handle email on Nokia Ovi exclusively. In return, Nokia will provide maps and navigation for Yahoo.
In a press conference at New York, the company underlines the importance of expanding services in fast growing markets, where users use their phones into the main device for accessing the web.
Handset vendor Nokia is a leader in many emerging markets. But had to struggle to grow up in North America.
Nokia CEO, Olli-Pekka Kallasvuo said that by working more closely with Yahoo to help compete in the United States.