Not surprisingly, the hard-to-read font led to increased deliberation time.

FORBES: Decision Quicksand

The Google logo, on the other hand, is iconic itself, using a series of primary colors and simple font to read.

FORBES: The 13 Best Global Google Doodles

The font change was the subject of user complaints, many unhappy with the way updates were harder to read after Facebook decreased the font size without warning.

FORBES: New Facebook Profile Pages: Now With Smaller Font

Adjustable Fonts: Read comfortably with eight different sizes and three font styles.

ENGADGET: Amazon brings Kindle and associated ebook shop to France

Now, you can lock the orientation sensor and pretty much never encounter this issue again (we can't ever really imagine needing to read a text-based book with adjustable font sizes in landscape mode, after all), but it seemed worth mentioning given it goes unchanged since the previous version.

ENGADGET: Amazon Kindle DX Graphite review

The dark menu with white text is easy to read, and the inbox itself is easy on the eyes with a light font.

FORBES: How Does The Gmail iOS App Compare To The Native Mail App?

Font size is not adjustable for bridged applications which may make text, especially for emails, difficult to read.

FORBES: The RIM Playbook: An "Evolving Concept"

If we're going to read Kant on the Kindle, or Proust on the iPad, then we should at least experiment with an ugly font.

WSJ: How E-Readers Change the Way We Read | Head Case by Jonah Lehrer