An anonymous reader writes "After many years I am finally considering entering the smartphone era. Within the mainstream, there seem to be four OS choices: Windows, Android, Blackberry, or iOS: Android comes out as clear winner to me. However, all of the choices in one way or another require sharing a lot of personal information in the Cloud run by their respective corporations. Let alone Blackberry's centralized mail servers; there is no way to have an Android smartphone working decently without sharing all of your contacts, calendar appointments, and other stuff with Google. While Android is less intrusive than iOS, the lack of privacy remains quite annoying no matter how comfortable it is to have your own calendar and contacts centralized. In 2011 is there any option, other than living in a cave, to keep one's own life private while enjoying the wonders of modern smartphone apps?"