It is impossible to imagine this world without three important things: internet, computers and spammers. And while the first two are very useful, the third one is something that we are fighting with. But, the grass is always greener on the dark side and we can?t do anything about it. But, if you want to join the army of contra-spammers, then you might be interested in this application from the Android Market. Number Guru provides free unlimited reverse phone number look-ups. Moreover, you can leave a comment about the caller and tell everyone if he?s bad or REAL bad. The app and service are free with no plans to charge in the future. The update mentioned was recently updated and now it performs 10 look-ups per second that makes it 864,000 look-ups each day. If it sounds interesting and helpful for you, why don?t you visit the Market for details and download links. Now we have a secret anti-spam weapon!