For your weekend reading pleasure, here are the most popular AppNewser headlines of the week.

They include the Vatican’s digitization project, the best iPhone apps for writers and a penguin using an iPad (video embedded above) and a glimpse of a 3D doodling pen (video embedded above)

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1. What Are the Best iPhone Apps for Writers?

2. Vatican Digitizing its Entire Library into 2.8 Petabytes of Data

3. How to convert ePub Books for use on Kindle

4. Save Handwritten Notes on Your iPad Wirelessly & Instantly

5.  Tools To Use When Google Reader Dies

6.  Marvel Releasing 700 Free Digital Comics for Mobile in 52 Weekly Installments

7. Websites Where You Can Download Free eBooks

8. How To Make a Homemade Stylus

9. Free eBooks of the Week

10. Watch This Penguin Chase a Virtual Mouse on His iPad