Sony Ericsson Windows Phone 7, A Dream Or A Reality?

There is a new registered domain call sony-microsoft.com or microsoft-sony.com and is register to Microsoft. This could be a hint that Sony Ericsson might pair with Microsoft which is Windows Phone 7 Sony Ericsson. Before this Sony Ericsson confrim that there might be a Sony Ericsson Windows Phone 7 in the making and also there's a leak of Slide out qwerty Windows Phone 7 of Sony Ericsson but all is gone when Sony CEO says that if the WIndows Phone 7 doesn't give an impact then the phone might just be a dream. But now with Mango update for the Windows Phone 7, will Sony Ericsson change its mind? Surely