Why? How is it possible that this announcement could backfire?
I believe there is disappointment that Nokia did not introduce this laptop with some revolutionary new mobile operating system, something that could compete with OSX / iPhone OS.
Nokia wanted to announce a new product but instead they announced that they have no alternative to Symbian, no secret weapon that can turn the company around.
Without an alternative to Symbian, Nokia's phones will continue to look unattractive compared to iPhones, Palm Pres and all the other new and modern smart phones out there.