iDialer is a finger-friendly dialpad for Windows Mobile PocketPC phones. It's essentially a clone of the very excellent iPhone dialer, with one major enhancement: iDialer allows you to seamlessly place calls using your virtual number from Google Voice, Phone.com, or JaJah!
iDialer is also skinnable (for those who don't like the iPhone look) and works with both VGA and QVGA skins, and in both portrait and landscape mode! It can also be used to simply replace your built-in dialpad, or as a nice interface for your calling cards!