[ame=http://www.youtube.com/watch?v=HRHyBPZYWeo]'Magnifier For Safari' Will Adjust Your Font Size For iPhone & iPod Touch - iOS Vlog 522 - YouTube[/ame]
Magnifier for Safari is great tweak for iDevice users that read Safari a lot or have troubles reading the screen. It allows you to have easy access to adjusting font size right within the Safari browser. After installing the tweak, go into Safari, tap "more options", Adjust Fontsize, and then you can play with the slider. The slider will either magnify or demagnify the text on the page. You can find this package in Cydia for $.99 under Big Boss.