Threaded email has become the new things in the newest WM 6.5.3 builds and we have a video demo here. The video demos the new way that MS lets you view your emails and it is pretty cool. If you can see the process of putting the emails under one name allows it to be more organized and easier to find something you are looking for. If you are interested, the newest builds with 23518.
Get the ROM from the Video here , all I got to say is “bravo” to the ROM maker.