Android market gets Caller ID from WhitePages application: Video
Caller ID app for the T-Mobile G1 has hit the Android Market; Caller ID is a handy Android App from WhitePages which provides advanced caller ID functionality on your Google Android T-Mobile G1 which you would probably only associate with a landline.
WhitePages Caller ID utilises mapping tools and promotes the true mobile nature of the G1 and allows the user to map the location of the caller, add the caller to their contacts, and see the name of the incoming caller, based on WhitePages online directory.
Kevin Nakao, the vice president of monetization and mobile for WhitePages has produced a video showing Caller ID at work and can be viewed below.
Source — android community