IMHO Basic cell phones are more of a commodity business today and more cost driven than technology driven. Perhaps Nokia's overhead is too high to make a good margin. The business model of all functional groups for basic cells would need to change. Applying those changes to the technology oriented product lines would be detrimental so breaking the technology focused products away so they can have a different business model makes sense. Splitting Maemo and Symbian smartphones may be to better understand and measure the costs of each and to perhaps let them operate differently from each other.