Seventh Generation Published Applications :

*** iWhitelist Contact helps you block unwanted phone calls and manage the allowed and disallowed contacts in a easy way ***

It supports multiple contact sources:

1. You can see...
Swipe is an impressive text input app that lets you to type on your phone without lifting your finger from the on-screen keyboard. Once you have the hang of it, typing will become lightning-fast...
Color Keyboard will let you color, design, and fully customize your iPhone's keyboard pretty much any way you'd like.

Color Keyboard even lets you customize your text color, size and style...