OpenGL ES for Android

I'm in the early stages of learning OpenGL ES for an Android app. The best resources I've found thus far are:

• Nico Weber's Google Body talk from Google I/O
• learnopengles.com
• Android's official OpenGL docs

OpenGL's performance model is new to me. As I understand it, the GPU is fast but far away; I'll achieve the best frame rates by limiting the number and size of my GPU calls. It'll take practice to use OpenGL efficiently!