Was the iPhone in good shape prior - you indicate multiple drops. Maybe not just a simple screen repair?
Typical mods to Android phones are rooting and for more advanced tech folks custom ROMs. Rooting the phone gives you super user privileges to do what you want...like remove ATT bloatware applications. You can then also install any app you want from the market - even if ATT does not like you doing so. Head over
XDA Samsung Infuse with a cup of coffee. All your related Infuse questions will be handled there.