Re: BuddyPress 101: bp-test, Building Block For BP Component
UPDATED, i wrote an example plugin that works without adding files in member-theme 
You can find a small post here http://buddypressdev.org/forums/topic.php?id=7
That explain a bit about this example extending component that i called bpdev-example
I forgot, here you can download bpdev-example : http://buddypressdev.org/plugins/bpdev-example
