FYI, your current errata page (as of Jan 11, 2011) for page 80 says this:

In Figure 3.7 the state block "onSaveInstanceState" and "onRestoreInstanceState" should be swapped.

There is no onSaveInstanceState in the chart to swap. There are two onRestoreInstanceState blocks and the second one is the error. The correct errata should say something like this instead:

In Figure 3.7 the state block in between onResume and onPause should be onSaveInstanceState.

i just got the book and am trying to do the first app, hello world and i am having an error.
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
the R in "(R.layout" is underlined in red and the error message is "R cannot be resolved"
any help would be appreciative, thanks