Asus were at CES this week. Apart from confusing people with a newer model of the Transformer Prime they also demonstrated the Asus Padfone. It has been a while since the Padfone was first announced and it now runs Ice Cream Sandwich which will make transition from phone to tablet a lot easier.
Here is the video, one slightly worrying thing is the lag moving from screen to screen. I guess this will be sorted on release.