Why be worried about that? After yesterday its clear that Nokia will be in essence Microsoft's hardware unit. Everything else got killed. Does the Nokia logo matter that much, cause the logo is the only difference between future Nokia products and the products that Microsoft's handset unit would be making after the purchase of Nokia.

The same people doing the same hardware using the same software. Why care whetever it says Nokia or Microsoft on top of it? You'll still be getting the same product in both cases.