GreenButton is a much sort after tweak that overrides the Call button. Supware.net, the guys who brought us iDialer, a Google Voice application, have understandably developed GreenButton with iDialer in mind. You can, however, modify GreenButton to fit any other application to launch with the Call button.

Avatar developer who also released the iContact and iDialer has released Avatar, a finger-friendly photo contact dialer. The application while not in its sharpest form, serves its purpose well. Once launched following installation, you can browse through contacts and perform actions when clicked on.

That’s right, since it was first developed, iDialer has come a long way to become an integratable application that is not just merely another phone dialer. And aside from the calling benefits, you can also improve the aesthetics of the application with the skinnable skins for both VGA and QVGA screen resolutions as well as portrait and landscape mode.