This week, I was not able to attend the full class due to time constraint, since I returned from a vacation on Tuesday. So my notes will not be as detailed as it used to be. I will try to provide detailed notes next week.
Getting authenticated with oAuth
So basically this week, Tony explained how to setup oAuth authentication, so that we can use the Twitter API without explicitly asking for password from the users.
In order to set it up, we have to first register for an app from Twitter. You can follow the screencast at the end of last week’s notes to do that.
Twitter4J
The next step is to include the Twitter4J jar. You can download it from the project homepage and then you have to copy it to the /lib directory of your android project. If you are using windows, then you can follow the steps given in this forum post to add Twitter4J to your android project.
Source code
You can access the source code for this week’s class from the official github repository.
See you all next week with detailed notes 
My notes for week one of Developing Android App class by @creativelive http://bit.ly/aF4s1I This week it is not as detailed as it used to be