"The first iPhone shipped in 2007, and we still don't have a product that is close to their experience," chief executive Mr Elop wrote in the note that was distributed to the Finnish company's staff.
"We thought MeeGo would be a platform for winning high-end smartphones. However, at this rate, by the end of 2011, we might have only one MeeGo product in the market."
MeeGo was created a year ago by the merger of Nokia and Intel's Linux-based platforms Maemo and Moblin.
Nokia is expected to publicly address its future strategy at a media event this Friday.