As someone said above (can't remember who, sorry!) it's really silly that Peter would move so far away from Simon (and Ken) just to get away from Coronation Street. I know he has ties to Portsmouth, but they must be pretty weak by now, having spent the last decade or so in Weatherfield. In reality, he'd just have moved a few miles away and would see his family all the time. It could be mentioned occasionally that Simon had been at Peter's to keep the illusion going.
I wish soap writers would think situations like this through!
I'll miss Chris Gascoyne as Peter and hope he returns to Corrie in a few years. There's no doubt Peter was going around in circles so a break might be a good thing.
I'm sorry to see Cilla go too.