Here r some of I have used:
AndroZip, Antennas,AntiMosquito,APNdroid:thumb:,App Locker,appInstaller:thumb::thumb:,ASTRO,AudioManager(Hide It Pro),BalanceBall:thumb:,Battery ETA,BestTube,BubbleBlast:thumb:,Cadio Trainer,Compass Leveler,FileGo:thumb::thumb:,Gesture Search:thumb:,Google Goggles,Google SkyMap,GPS Test,Hangman Classic,Instant Heart Rate,Juice Defender,Launcher Pro,Linpack for Android,Metal Detecter,MixZing Player,My Settings, Opera Mini( My fav Browser):heart:,PicSay,RingDroid,RockPlayer,Sudoku Free,Task KIller, Temp+CPU v2,Toss It,TunedIn radio,Unrar Pro,Visual Task Swithcer:thumb:.