Very interesting definitely a fresh take on it all.
This is just for iPhone, I would like to see your iPad version.
First off if your going to sell this unless your going to do everyone a free floor plan you might want to do some room icons. Also you will want to have a large collection of source and zone icons as someone will be using a source you haven't thought of or a room you haven't done.
I would also do your own image list for weather to match everything else.
Personally I do not like the info page or schedule page, just don't feel it matches the rest of the ui.
For your music where is the feedback of what's playing? Like meta data and cover art? Also think of other music streamers that need a browse page, now playing list page and up next pages or variations of this ilk.
For sky look at Clive's sky hd driver it will make your ui pop more with browse lists and images for what's playing and up next etc