Hi,
I've decided enough is enough and if google wont hand out a source code for download wiht each SDK, i'll do just that.
There were numerous articles of how to do that so i'll spare you the details.
This article has a link to the SDK sources for 1.5, 1.6 and 2.0, all gathered from the git repository.

in the article i'v put a link to the article that explains what to do with them in eclipse.

Hope u'll benefit from it.

http://www.devfrustrated.com/devBlog/browsing-android-source-code-in-eclipse/
Enjoy...