To make the textlarger than 10-point font requires zooming in on the document and dragging it around with the iRex's stylus, a naggingly slow process given E-Ink's refresh rate of about one second. iRex claims it redraws its screen faster than Kindle, but in Forbes.com's tests it locked up sporadically and often took far longer to refresh than Amazon's less flashy display.
Consequently, carriers are offering lessons on how to text, introducing phones with larger sized buttons to make it easier to text and increasing media budgets to target older users.