https://blog.adafruit.com/2012/12/05/how-we-built-a-super-ni...
1,120 karma · joined September 26, 2013
https://blog.adafruit.com/2012/12/05/how-we-built-a-super-ni...
While the app was initially used primarily by individuals who made a few airport pickups per year, today Just Landed is increasingly used by professional limousine and taxi drivers, airline professionals, and travel companies.
So they were seeing increasing use by commercial users. Sounds like a ripe opportunity to start charging for such access.
[0] https://en.wikipedia.org/wiki/INCJ [1] http://asia.nikkei.com/Business/Deals/Sharp-accepts-Hon-Hai-...
[1] http://jmap.io/
[1] http://www.amazon.com/IBM-UltraNav-Keyboard-Integrated-Point...
Seems like the different San Francisco variants were designed to solve problems due to the physical dimensions of the letterforms at small sizes, not anything to do with a pixel grid.