Does your CIO need reading glasses? I had just started to need them when I got my last phone, a Nokia E71. Made sure you could get an app that would make the fonts larger first (though just relied on the Nokia shop staff!). It sort of worked in some apps but wasn't a great success. Plus the app developer never kept up with new firmware releases.
I got my current phone (Desire HD) partly because I thought the larger screen would also help the "lack of eyesight". Coming from an IT career that involved many years with computer graphics though I knew all about font sizes compared to screen size and resolution and didn't have any realistic expectations that it would actually help any. Just a gadget lover at heart .....
Anyhow, tell your CIO to just give up and use reading glasses. It'll make you life easier anyway!
Dave