Updated to Google Maps 4.7 a couple of days ago and there are now two programs that autostart and run constantly in backgroud that are associated with Maps. It is the Places Ratings and Friends Locations services that show up in Running Services.
I never saw these running or autostarting with Maps 4.6 and this seems to be causing severe lag and other issues for me. I'm uninstalling 4.7 and going back to 4.6.
Anybody else with this issue?