I currently have a Google Nexus 7 and get all the OS updates as they are made available. What I am wondering though, is do off brands that offer Android OS but are not "Google" products, do those get automatic updates. If I buy a Dell tablet that comes with android 4.2 jelly bean. Is that all i'll ever have. Where as my nexus updated from Jelly Bean to KitKat on its own with no expense?