Just a few months ago Google added Tim Bray to their team as an Android Advocate, and today Erick Tseng has announced he will be leaving Google and Android and joining forces with Facebook. For those unaware, Erick is the senior product manager for Android at Google, a very crucial part of the Android team. It is currently unknown how Google will react, and how they will fill the position, but odds are that an opening will be posted soon to get that spot filled quickly. [Erick Tseng (Twitter) via Engadget]