the google settings app is where you can set up photo backup & location settings. Like backing up photos over wifi only, and determining who can see your location, and to use location for Google Now.
I also recommend searching "google" in the play store and downloading a bunch of the google apps. Here are some good ones,
google+
chrome
google search (gives you google now)
calendar
earth
drive
play music
keep
streetview
google keyboard
text to speech
goggles
currents
voice
chrome to phone
gesture search
hangouts
Doesn't teh Google search app give you goggles and some others?
I have an iPhone now, but am considering switching next time.
Here's a question, if I have a book on the kindle app on my ipad, will I be able to pickup and read it on an android phone via its Kindle app as well?