My most recent piece is about Using Android’s Advertising ID (Safari Online Books blog).
The ability to identify users is important for advertising, analytics and other purposes. Android developers typically rely on the Android Device ID or Telephony IDs such as the International Mobile Equipment Identity (IMEI) to uniquely identify users, but these approaches also introduce privacy concerns. Android 4.4 Kitkat introduces a new anonymous identifier for advertising purposes. Referred to as Advertising ID, it provides a user-resettable identifier that helps protect the user’s personal identity.
Read the rest of the blog Using Android’s Advertising ID…