TheStreet.com has said today that Microsoft only managed to sell 40,000 Windows Phone 7 devices on launch day in the U.S., not including the 90,000 given out to Microsoft employees.
In comparison, Apple says it sells 160,000 iPhones per day, while Google says 200,000 Android devices are activated daily.
One strategist says the Monday launch date did not help matters.
"Mondays aren't great launch days. They poured all that cash into it but they lost track of the fact that Fridays or Saturdays are the best launch days," said Michael Cote of Cote Collaborative.
Microsoft is said to have spent $100 million on advertising for WP7.











