Are you rooted?
Music Downloader - you can download free mp3s.
RockPlayer - you can load movies on your SD card and watch them.
ShootMe - screen capture
Ski Report - snow conditions for different resorts
TrailMaps - self explanatory
Vaulty Free - allows you to hide pictures in your gallery, so you can hide all of the naked pics of your girls so that if you lose your phone, people can't go through it and find them easily. Or hide naked pics of your OTHER girlfriend, so you main girl doesn't see them and catch you up.
ChompSMS - it's a way cooler, customizable text messaging program
Flashlight - uses the led flash on your camera as a flashlight with three different brightness settings.
Ski Record - you can see how fast you're going.
WeatherBug - a cooler weather widget
AudioManager - a widget that gives you quick access to adjust the volume of music, apps, calls, alerts, etc.
Shoosh - a timer for you phone volume. You can put your phone on silent, etc, and set a timer to automatically turn it back to regular volume so you don't forget and miss calls.
TuneInRadio - you can stream any radio station in the country.
If you are rooted....
Rom Manager - allows for quick and easy management of different ROMs
Titanium Backup Pro - allows you to backup and restore your phone
SECuRET SpyCam - you can tap you phone from a computer and access the camera from a remote location. and you can tap your webcam from your phone and monitor what's going on at home. make sure your wife isn't banging the milkman while you're at work. (jokes)
Tango - video calls over 3g, and you don't have to keep it up and running all of the time, so it's not a battery hog.
App 2 SD - allows you to move apps to your SD card and run them off of there to preserve internal memory.
Wireless Tether - allows you to use your phone as an internet connection for your computer...wireless of course....and you don't have to pay all of the bs fees that a lot of carriers want to charge you to use your phone as a modem.
I'm sure I've got more, but those should be a good start for you.
