It is in this here article:
Sony selling off its PC business to an investment fund | Windows Phone Central
The good news for us that are interested in a Sony WP is that it is pure speculation on the part of the WPC staff (Sam Sabri wrote the article) it is not happening. Since it was rumored to be a smartphone released under the VAIO name, unifing it with Sony's now sold laptop line, Mr. Sabri makes the connection Sony will sever all ties with Microsoft products.
However, in 'Mutts world, if Sony wants to focus on Tablets and Smartphones, why not continue working with the fastest growing mobile OS and see if you can catch lightning in a bottle? If plans were already moving on a WP smartphone, why would selling PC business stop the release of the smartphone your company plans to specilize in anyways?
I say.... Bring on the Sony WP.