I find the keys difficult to type on because there are so small and cramped whilst texting on the iphone. You know the keypad that most other not so good phones use? Where ABC is on the number 2, DEF on number 3, etc. Can you use that keypad instead of the default one which is like a keyboard?
Iphone 3GS alternative keypad?
Go on iphoneadmin.com check it out it gives u info on ur iphone for free try out