am 50a3977c: Merge "Adding BusinessCard sample to Android.mk and to the Resources TOC on developer.android.com." into eclair

Merge commit '50a3977c619be113bb35fb7fd53874effad6dbe4' into eclair-plus-aosp

* commit '50a3977c619be113bb35fb7fd53874effad6dbe4':
  Adding BusinessCard sample to Android.mk and to the Resources TOC on developer.android.com.