dSploit, Network SPoofer, Network Discovery, Shark for Root, Penetrate Pro, DroidSheep, WPSScan, Nessus, FaceNiff, WebSecurify, network mapper, Router BruteForce, Andosid, AppUse, Half of these are ports from Linux. Some require you to root your phone. I have tried out about 1/2 of these apps, but adding some to my list for the future.
http://resources.infosecinstitute.com/security-hacking-apps-android/