Hello!

I was wondering if anyone knows how to enlarge text or change the color of text on an Iphone 3g? I'm looking to customize my phone to larger text so I can read my calendar, contacts, SMS, and such. Also does anyone know of any Magnifier applications out there that could help? The 3GS has all these options and it's a shame the 3G dosen't I am visually impaired and these options would have made such a difference for me.