The flexibility and relative affordability of phones allows for easy distribution and use, providing distance learning across geographical barriers.

UNESCO: Partners & Donors

Distribution starts with making it easy for people to sign up to receive your emails.

FORBES: Three Steps To Building The Right Audience Through E-Mail

To be fair, though, I don't know of any distribution that makes it easy to switch to 100 dpi fonts for high resolutions.

CNN: Corel Linux 1.0 is praiseworthy but flawed