Google Search 3.0 for iOS Adds Google Now
Top message: GPS Always on by andy2373
Replying to: Re: GPS Always on by andy2373
Re: GPS Always on
So if you want, say the weather, you don't ask it to give you the weather, you just look at your screen and low and behold, the weather information is already there for you before you asked for it.
Google Now learns your patterns so that it can tell you what you want to know without asking.
That is why you don't turn it on and off.
As far as the effect on battery life, I haven't noticed one since my Galaxy Nexus was upgraded to Jelly Bean last summer.
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