Apple does this as well for what it's worth.
It is freaky to see a map of everywhere I've been in the last 30 days and be able to hit the play button to animate it.
To expand on this concept, google, the NSA, and all governments the NSA sells data to know the following about you simply from this "metadata":
- How fast you drive
- Who your real friends are(same people, same place, etc)
- What social clubs you're in(same people, same place, etc)
- Who your work friends are (lunch together with same people)
- If you're a loner (do you not eat lunch with groups, etc)
- How often you go to the gun range
- What hobbies you have (often fishing, golfing, autocrossing, etc)
- How boring you are in my case
- If you really workout or not
- Do you eat too much fast food (Does your GPS show you at TacoBell too much)
- Do you ever go to the bookstore
- Do you shop at Walmart or Target
- Do you vote (does GPS show you at a voting location on X day)
- If you have family (are you alone during holidays)
- what else????