Advanced Network Caller ID shows pop up information.

It can display:

– The full name of caller
– Address of caller with a map link
– The number of FTC and caller complaints (to tell if it’s a spam call)
– Telco name and location (can tell what carrier the call is from)
– Relatives of caller (with age!)
– Criminal History

Changes:

– added vCard NetCallerID extensions for caller information providers
– added a SMS Reply
– added a ‘check for updates’ option
– fixed some gui issues for lower res wm devices
– updated whitepages provider to obtain more call information
– updated configuration GUI for programmable call information providers
– added more information to status window in standalone

http://forum.xda-developers.com/showthread.php?t=566270