As far as I know, "some" is just 6.0, which is currently at 2.3% adoption (I have it on my Moto X and like it. About a third of the apps I had before the upgrad

As far as I know, "some" is just 6.0, which is currently at 2.3% adoption (I have it on my Moto X and like it. About a third of the apps I had before the upgrade fail to work if not given contacts or location, so I just uninstall them.) iOS has the same feature but much greater adoption. What I would really like is a "some contacts" option. I still have people I haven't called in years in my phone, but if I could give an app a list of 20 family, friends, and coworkers that would make things simpler.