Set large font for HTC Inspire 4G text message
ref: HTC Inspire 4G text message settings, HTC Inspire 4G settings
A newer of the HTC device requested if it was possible to enlarge font when he read incoming text messages. Such a setting is not accessible on the handset itself, but an application can help do it.
Handcent is the best apps that I have found so far, it allows users to change the text size as well as colors. Since it is an Android Market application, AT&T customers can get it.