Android build target, duplicates, which to choose?

Question

When creating a new android project, the build target has two choices:

Android 2.2, Android Open Source Project AND Google API's, Google Inc.

Both show Platform as 2.2 and API level 8

Which to choose (and why)?

Answer 1

The AVD with Google API's contains google Api's like GoogleMaps.

For example: If you application uses GoogleMaps, then you will have to use an AVD with Google API's.