<p>What is your definition of apps?</p>
<p>It will take more than a degree to get you in one of the companies you listed. You should put Amazon on your list too. A few things you can do without cost. You can get Android SDK and just go thru the tutorial to learn about the process. AWS offers a free tier. Google App Engine and Google API are free. Pick an app you know, break the app apart and investigate what services from AWS and GAE are needed to develop the app. You need to do the homework yourself to form your own opinion. What you gain from doing the research yourself will be more useful than what we tell you. That will be what Google, Apple, Microsoft expecting you to do too.</p>