Will the developers add appropriate buttons etc for the TV functionality after the SoC? Having tried xTV and AEON they are much less functional than PM III. However, I need a TV button on the home screen for my family.

You could try to edit the Home.xml yourself.......it's not that hard. I added a TV Button to MC360. I'll take a look at PMIii.....see what it looks like.

I started by trying to do it myself. No joy. I was going to follow another fellows lead and try and remap a button. I couldn't get it to work. I really don't want to remap one, I just want to add one.