Same here. Got it on my Nexus 4 (T-Mobile) in SF. I hadn't noticed this feature before either, so the first thing I did when it prompted me was to disable it,

Same here. Got it on my Nexus 4 (T-Mobile) in SF. I hadn't noticed this feature before either, so the first thing I did when it prompted me was to disable it, then when I thought about it for a few seconds, I realized it was actually a pretty smart/useful feature so I enabled it again. I hadn't even realized this was an android thing, but if it increases the likelihood of helping people out, I have no problem with it.