Intel has worked closely with Nokia on developing the MeeGo software platform for mobile devices, but Nokia pulled back from the collaboration in February when the Finnish firm said it would focus on Microsoft
Unions fear the software choice will cost more than 5,000 lost jobs for Finnish engineers. Nokia has said it would unveil the job cuts at the end of April.
Nokia has promised to roll out later this year one device running the MeeGo operating system.
(Reporting by Tarmo Virki and Noel Randewich; Editing by Jon Loades-Carter)